Home

/

School

/

CBSE

/

Class 11 Commerce

/

Economics

/

Environment and Sustainable Development

CBSE Explorer

Environment and Sustainable Development

AI Learning Assistant

I can help you understand Environment and Sustainable Development better. Ask me anything!

Summarize the main points of Environment and Sustainable Development.
What are the most important terms to remember here?
Explain this concept like I'm five.
Give me a quick 3-question practice quiz.

Summary

Summary of Environment and Sustainable Development

  • Understanding the Environment: The chapter discusses the concept of the environment and its significance in sustainable development.
  • Environmental Challenges in India: Key issues include water contamination, affluent consumption, industrialization, urbanization, reduction of forest coverage, poaching, and global warming.
  • Functions of the Environment:
    • Supplies resources (renewable and non-renewable)
    • Assimilates waste
    • Sustains life by providing genetic and biodiversity
    • Provides aesthetic services
  • Sustainable Development: Defined as development that meets present needs without compromising future generations' ability to meet their own needs.
  • Interdependence of Environment and Economy: Emphasizes the need for sustainable practices to prevent environmental degradation.
  • Strategies for Sustainable Development: Includes the use of non-conventional energy sources and conservation of natural resources.
  • Opportunity Costs of Environmental Damage: Highlights the financial implications of environmental degradation on health and resources.

Learning Objectives

Learning Objectives

  • Understand the concept of environment.
  • Analyze the causes and effects of environmental degradation and resource depletion.
  • Understand the nature of environmental challenges facing India.
  • Relate environmental issues to the larger context of sustainable development.

Detailed Notes

Environment and Sustainable Development

Introduction

  • Understanding the concept of environment
  • Analyzing causes and effects of environmental degradation and resource depletion
  • Nature of environmental challenges facing India
  • Relation of environmental issues to sustainable development

Functions of the Environment

  1. Supplies Resources: Includes both renewable (e.g., trees, fish) and non-renewable resources (e.g., fossil fuels).
  2. Assimilates Waste: The environment can absorb waste up to a certain capacity.
  3. Sustains Life: Provides genetic and biodiversity necessary for life.
  4. Aesthetic Services: Offers beauty and scenery.

Environmental Challenges in India

  • Water Contamination
  • Affluent Consumption Standards
  • Illiteracy
  • Industrialization
  • Urbanization
  • Reduction of Forest Coverage
  • Poaching
  • Global Warming

Sustainable Development

  • Defined as development that meets the needs of the present without compromising future generations.
  • Emphasizes the importance of intergenerational equity.
  • Focuses on the moral obligation to leave a better environment for future generations.

Strategies for Sustainable Development

  • Use of Non-conventional Sources of Energy: Transitioning from thermal and hydro power to renewable sources like wind and solar energy.
  • Conservation of Natural Resources: Ensuring sustainable extraction and use of resources.
  • Pollution Control: Implementing measures to reduce air and water pollution.

Conclusion

  • The environment and economy are interdependent; sustainable development is crucial for long-term viability.

Exam Tips & Common Mistakes

Common Mistakes and Exam Tips

Common Pitfalls

  • Misunderstanding Environmental Functions: Students often confuse the functions of the environment, such as resource supply and waste assimilation. Ensure clarity on these definitions.
  • Ignoring Interdependence: Failing to recognize the interdependence between environment and economy can lead to incomplete answers.
  • Overlooking Sustainable Development: Many students do not adequately explain sustainable development, missing key aspects like intergenerational equity and resource distribution.

Exam Tips

  • Define Key Terms: Always define terms like 'environment', 'sustainable development', and 'environmental degradation' clearly in your answers.
  • Use Examples: When discussing environmental issues, provide specific examples relevant to India, such as pollution from industrialization or urbanization impacts.
  • Address Both Dimensions of Environmental Threats: Discuss both poverty-induced degradation and pollution from affluence in your answers to show a comprehensive understanding.
  • Highlight Government Initiatives: Mention the role of the Central Pollution Control Board (CPCB) and other government measures in addressing environmental issues.
  • Discuss Opportunity Costs: Explain the concept of opportunity costs in relation to environmental damage to demonstrate deeper economic understanding.

Practice & Assessment

Multiple Choice Questions

A.

Trees

B.

Fish

C.

Coal

D.

Water
Correct Answer: C

Solution:

Coal is a non-renewable resource because it cannot be replenished on a human timescale.

A.

Increased incidence of respiratory diseases

B.

Rise in sea levels

C.

Increased ultraviolet (UV) radiation reaching Earth

D.

More frequent tropical storms
Correct Answer: C

Solution:

Ozone depletion allows more ultraviolet (UV) radiation to reach Earth, which can cause damage to living organisms.

A.

Air

B.

Water

C.

Plants

D.

Rocks
Correct Answer: C

Solution:

Biotic components are living elements of the environment, such as plants, animals, and microorganisms.

A.

Development that meets the needs of the present without compromising future generations.

B.

Development that focuses solely on economic growth.

C.

Development that uses all available resources.

D.

Development that ignores environmental impacts.
Correct Answer: A

Solution:

Sustainable development is defined as development that meets the needs of the present without compromising the ability of future generations to meet their own needs.

A.

Implement a carbon offset program to balance the increased emissions.

B.

Increase production further to offset the environmental cost.

C.

Ignore the emissions as the technology increases efficiency.

D.

Switch to a completely different technology that does not increase emissions.
Correct Answer: A

Solution:

Implementing a carbon offset program aligns with sustainable development by addressing the environmental impact while still benefiting from increased production efficiency.

A.

Using coal at a rate that exceeds its natural replenishment.

B.

Extracting oil while investing in renewable energy research.

C.

Mining iron ore without any restoration plans.

D.

Burning natural gas with no emissions control.
Correct Answer: B

Solution:

Investing in renewable energy research while using non-renewable resources represents a transition to sustainability.

A.

Oxygen

B.

Carbon Dioxide

C.

Nitrogen

D.

Helium
Correct Answer: B

Solution:

Carbon dioxide is a major greenhouse gas contributing to global warming.

A.

Adopting crop rotation and soil conservation techniques.

B.

Increasing the use of agro-chemicals like fertilizers and pesticides.

C.

Implementing proper irrigation management systems.

D.

Reforesting areas that have been deforested.
Correct Answer: B

Solution:

The indiscriminate use of agro-chemicals such as fertilizers and pesticides can lead to soil degradation, making option B the practice that would exacerbate land degradation.

A.

To promote afforestation

B.

To regulate and control air and water pollution

C.

To manage wildlife conservation

D.

To oversee agricultural practices
Correct Answer: B

Solution:

The CPCB is responsible for regulating and controlling air and water pollution in India.

A.

By setting up new industries

B.

By regulating vehicular emissions

C.

By increasing the use of fossil fuels

D.

By promoting urbanization
Correct Answer: B

Solution:

The CPCB regulates vehicular emissions as part of its efforts to control air pollution in India.

A.

Supply of resources

B.

Assimilation of waste

C.

Providing genetic and bio diversity

D.

Regulating economic policies
Correct Answer: D

Solution:

The environment performs four vital functions: it supplies resources, assimilates waste, sustains life by providing genetic and bio diversity, and provides aesthetic services. Regulating economic policies is not a function of the environment.

A.

Methane emissions from livestock

B.

Chlorofluorocarbons (CFCs)

C.

Carbon dioxide from burning fossil fuels

D.

Sulfur dioxide from industrial emissions
Correct Answer: B

Solution:

Ozone depletion is primarily caused by high levels of chlorine and bromine compounds in the stratosphere, originating from chlorofluorocarbons (CFCs).

A.

Increasing the number of public transport vehicles

B.

Implementing stricter emission standards for vehicles

C.

Planting more trees along the roadsides

D.

Promoting the use of electric vehicles
Correct Answer: B

Solution:

Implementing stricter emission standards directly reduces the pollutants emitted by vehicles, thus having a significant impact on improving air quality.

A.

Increasing the height of industrial chimneys.

B.

Implementing stricter emission standards and regular monitoring.

C.

Relocating industries to a different part of the city.

D.

Planting trees around the industrial area.
Correct Answer: B

Solution:

Stricter emission standards and regular monitoring directly address the source of pollution, making it the most effective measure.

A.

Assimilating waste

B.

Providing aesthetic services

C.

Generating unlimited non-renewable resources

D.

Sustaining life by providing genetic and bio diversity
Correct Answer: C

Solution:

The environment cannot generate unlimited non-renewable resources; these resources get exhausted with extraction and use.

A.

Proper crop rotation

B.

Sustainable fuel wood extraction

C.

Deforestation

D.

Adequate soil conservation measures
Correct Answer: C

Solution:

Deforestation leads to loss of vegetation, which is a major factor in land degradation.

A.

It decreases resource demand.

B.

It increases resource regeneration.

C.

It places stress on environmental resources.

D.

It reduces pollution levels.
Correct Answer: C

Solution:

Population explosion increases the demand for resources, placing stress on the environment.

A.

Encouraging industrial growth without environmental regulations.

B.

Implementing policies that promote equitable resource distribution and pollution control.

C.

Focusing solely on technological advancements for pollution control.

D.

Ignoring environmental concerns to boost economic growth.
Correct Answer: B

Solution:

Implementing policies that promote equitable resource distribution and pollution control addresses both poverty-induced degradation and pollution from affluence, aligning with sustainable development goals.

A.

Overuse of renewable resources

B.

Excessive use of agro-chemicals

C.

Increase in urban green spaces

D.

Reduction in industrial activities
Correct Answer: B

Solution:

The indiscriminate use of agro-chemicals such as fertilizers and pesticides is a major factor contributing to land degradation.

A.

Increasing landfill sites

B.

Promoting recycling and composting

C.

Exporting waste to other regions

D.

Incinerating waste to generate energy
Correct Answer: B

Solution:

Promoting recycling and composting helps in reducing the amount of waste that needs to be assimilated by the environment, thus aligning with its function of waste assimilation.

A.

Increase in oxygen levels.

B.

Deforestation and burning of fossil fuels.

C.

Decrease in nitrogen levels.

D.

Increase in water vapor.
Correct Answer: B

Solution:

Global warming is primarily caused by the increase in greenhouse gases due to deforestation and burning of fossil fuels.

A.

Overuse of renewable resources

B.

Excessive groundwater extraction

C.

Urbanization

D.

Increase in renewable energy sources
Correct Answer: B

Solution:

Excessive groundwater extraction is one of the factors responsible for land degradation, as it exceeds the recharge capacity, leading to depletion of water resources.

A.

A forest that regenerates after a wildfire.

B.

A river that purifies itself over time despite moderate pollution.

C.

A mine that depletes its ore reserves.

D.

A solar farm that generates renewable energy.
Correct Answer: B

Solution:

Assimilative capacity refers to the environment's ability to absorb and neutralize pollutants without harmful effects, as seen in a river purifying itself.

A.

Increase in global temperatures

B.

Increase in ultraviolet radiation reaching Earth

C.

Decrease in sea levels

D.

Increase in biodiversity
Correct Answer: B

Solution:

Ozone layer depletion leads to more ultraviolet (UV) radiation reaching the Earth's surface, which can cause harm to living organisms.

A.

Increasing industrial output

B.

Regulating air quality

C.

Promoting deforestation

D.

Encouraging fossil fuel use
Correct Answer: B

Solution:

Pollution Control Boards regulate air quality by monitoring emissions and setting standards.

A.

It provides aesthetic services.

B.

It reduces global warming.

C.

It creates fossil fuels.

D.

It increases industrial output.
Correct Answer: A

Solution:

The environment provides aesthetic services like scenery, which is one of its functions.

A.

Coal

B.

Petroleum

C.

Trees in the forests

D.

Iron ore
Correct Answer: C

Solution:

Trees in the forests are considered renewable resources as they can be replenished naturally over time.

A.

Ensuring economic growth for the current generation

B.

Meeting the needs of the present without compromising future generations

C.

Maximizing resource extraction for current use

D.

Focusing solely on technological advancements
Correct Answer: B

Solution:

Intergenerational equity in sustainable development means meeting the needs of the present generation without compromising the ability of future generations to meet their own needs.

A.

The financial cost of implementing pollution control measures

B.

The loss of potential economic benefits due to environmental degradation

C.

The cost of restoring ecosystems to their original state

D.

The expense associated with the extraction of non-renewable resources
Correct Answer: B

Solution:

Opportunity cost refers to the loss of potential economic benefits that could have been gained if the environment had not been degraded.

A.

Natural climatic cycles

B.

Increased volcanic activity

C.

Human-induced greenhouse gas emissions

D.

Decreased solar activity
Correct Answer: C

Solution:

Human-induced increases in carbon dioxide and other greenhouse gases through the burning of fossil fuels and deforestation are the primary reasons for the increase in global warming.

A.

Assimilating waste

B.

Sustaining life by providing genetic and bio diversity

C.

Supplying renewable resources

D.

Providing aesthetic services
Correct Answer: B

Solution:

The environment sustains life by providing genetic and bio diversity, which is crucial for maintaining ecosystems and supporting sustainable development.

A.

Meeting the needs of the present without considering future generations

B.

Unlimited use of natural resources

C.

Development that meets the needs of the present without compromising future generations

D.

Focusing solely on economic growth
Correct Answer: C

Solution:

Sustainable development is defined as development that meets the needs of the present without compromising the ability of future generations to meet their own needs.

A.

They only focus on water pollution

B.

They regulate industrial emissions and promote air and water quality

C.

They are responsible for urban planning

D.

They focus solely on increasing industrial production
Correct Answer: B

Solution:

Pollution control boards regulate industrial emissions and promote air and water quality by setting standards and monitoring pollution levels.

A.

Increased polar ice

B.

Rise in sea level

C.

Decrease in tropical storms

D.

Reduction in greenhouse gases
Correct Answer: B

Solution:

Global warming leads to the melting of polar ice, resulting in a rise in sea level.

A.

Increasing industrial output without regulation

B.

Meeting the needs of the present without compromising future generations

C.

Maximizing resource extraction for immediate economic gain

D.

Focusing solely on technological advancement
Correct Answer: B

Solution:

Sustainable development involves meeting the needs of the present generation without compromising the ability of future generations to meet their own needs.

A.

Implementing strict industrial regulations without addressing rural poverty

B.

Promoting sustainable agricultural practices alongside industrial regulations

C.

Focusing solely on urban air pollution control measures

D.

Encouraging rapid industrialization to boost economic growth
Correct Answer: B

Solution:

Promoting sustainable agricultural practices alongside industrial regulations addresses both poverty-induced degradation and pollution from affluence, creating a balanced approach to environmental challenges.

A.

Trees

B.

Fish

C.

Petroleum

D.

Water
Correct Answer: C

Solution:

Petroleum is a non-renewable resource as it gets exhausted with extraction and use, unlike trees, fish, and water which can be replenished.

A.

Deforestation

B.

Overuse of renewable resources

C.

Improper planning and management of irrigation systems

D.

Indiscriminate use of agro-chemicals
Correct Answer: B

Solution:

While overuse of resources is a concern, it is not specifically mentioned in the context of land degradation factors, unlike deforestation, improper irrigation management, and agro-chemical use.

A.

Increased agricultural productivity

B.

Stabilization of sea levels

C.

Melting of polar ice and rise in sea levels

D.

Decrease in tropical storm frequency
Correct Answer: C

Solution:

Global warming leads to the melting of polar ice, which results in a rise in sea levels and can cause coastal flooding.

A.

Increased use of renewable energy sources

B.

Deforestation and burning of fossil fuels

C.

Recycling and waste reduction

D.

Increased agricultural productivity
Correct Answer: B

Solution:

Deforestation and burning of fossil fuels significantly contribute to global warming by increasing the levels of greenhouse gases in the atmosphere.

A.

Petroleum

B.

Coal

C.

Trees

D.

Iron-ore
Correct Answer: C

Solution:

Trees are a renewable resource as they can be replenished naturally.

A.

Increasing fossil fuel consumption

B.

Promoting renewable energy sources

C.

Expanding deforestation activities

D.

Increasing industrial waste
Correct Answer: B

Solution:

Promoting renewable energy sources is a key step towards achieving sustainable development by reducing reliance on non-renewable resources.

A.

Birds

B.

Fishes

C.

Rocks

D.

Forests
Correct Answer: C

Solution:

Rocks are considered abiotic because they are non-living components of the environment.

A.

A company increases its production by using more non-renewable resources to meet current demands.

B.

A community implements a recycling program that reduces waste and conserves resources for future generations.

C.

A government subsidizes fossil fuel industries to lower energy costs for its citizens.

D.

An individual uses more water than needed to maintain a lush garden in a drought-prone area.
Correct Answer: B

Solution:

Sustainable development is defined as development that meets the needs of the present generation without compromising the ability of future generations to meet their own needs. Implementing a recycling program aligns with this definition by conserving resources.

A.

Increasing industrial output without regard for environmental impact

B.

Promoting the use of renewable energy sources

C.

Expanding urban areas into forested regions

D.

Increasing the use of chemical fertilizers in agriculture
Correct Answer: B

Solution:

Promoting the use of renewable energy sources is aligned with sustainable development as it reduces reliance on non-renewable resources and minimizes environmental impact.

A.

Deforestation

B.

Proper crop rotation

C.

Overgrazing

D.

Improper planning of irrigation systems
Correct Answer: B

Solution:

Proper crop rotation is a sustainable practice and does not contribute to land degradation.

A.

Increased biodiversity

B.

Improved air quality

C.

Unplanned urbanisation

D.

Decrease in population
Correct Answer: C

Solution:

Unplanned urbanisation is a serious adverse environmental consequence of development in India.

A.

Development that meets current needs without compromising future generations

B.

Development that focuses solely on economic growth

C.

Development that ignores environmental impacts

D.

Development that prioritizes industrialization
Correct Answer: A

Solution:

Sustainable development is defined as development that meets the needs of the present generation without compromising the ability of future generations to meet their own needs.

A.

Increased greenhouse effect

B.

Reduced levels of UV radiation

C.

Higher incidence of skin cancer

D.

Decrease in global temperatures
Correct Answer: C

Solution:

Ozone layer depletion allows more UV radiation to reach the Earth, increasing the risk of skin cancer.

A.

A company using all available resources to maximize current profits

B.

A government investing in renewable energy to reduce future environmental impact

C.

A community focusing on immediate economic growth over environmental conservation

D.

An individual prioritizing personal consumption over resource conservation
Correct Answer: B

Solution:

Investing in renewable energy helps ensure that future generations have access to clean energy resources, illustrating the concept of intergenerational equity.

A.

Carbon dioxide emissions

B.

Chlorofluorocarbons (CFCs)

C.

Methane gas

D.

Nitrous oxide
Correct Answer: B

Solution:

Ozone depletion is primarily caused by high levels of chlorine and bromine compounds in the stratosphere, originating from chlorofluorocarbons (CFCs).

A.

The need for international cooperation on environmental issues

B.

The financial burden of health costs due to degraded environmental quality

C.

The high cost of renewable energy technologies

D.

The lack of awareness about environmental issues
Correct Answer: B

Solution:

Negative environmental impacts lead to degraded air and water quality, resulting in increased health costs, which contribute significantly to the opportunity costs.

A.

To promote industrial growth

B.

To regulate and control air and water pollution

C.

To provide subsidies to polluting industries

D.

To monitor agricultural practices
Correct Answer: B

Solution:

The CPCB is responsible for regulating and controlling air and water pollution, setting standards for emissions, and monitoring environmental quality.

A.

Increasing the factory's production to meet global demand.

B.

Implementing water recycling and conservation measures.

C.

Using more chemical processes to speed up production.

D.

Expanding the factory's footprint to cover more land.
Correct Answer: B

Solution:

Implementing water recycling and conservation measures would help in reducing the environmental impact by conserving limited water resources, aligning with sustainable development practices.

A.

The financial cost of purchasing renewable energy technologies.

B.

The loss of potential economic benefits due to environmental degradation.

C.

The expenses incurred in setting up pollution control boards.

D.

The cost of extracting non-renewable resources.
Correct Answer: B

Solution:

Opportunity costs related to environmental impacts refer to the loss of potential economic benefits due to environmental degradation, as resources are diverted to address these impacts.

A.

The river's ability to assimilate waste without affecting water quality

B.

The availability of non-renewable resources in the area

C.

The aesthetic value of the river for tourism

D.

The biodiversity of the river ecosystem
Correct Answer: A

Solution:

The environment's function of assimilating waste is critical to ensure that the river can handle the effluent without degrading water quality, thus maintaining sustainability.

A.

Increasing the use of chemical fertilizers

B.

Implementing crop rotation and afforestation

C.

Expanding urban development

D.

Relying on natural regrowth of vegetation
Correct Answer: B

Solution:

Implementing crop rotation and afforestation helps in stabilizing the soil and reducing erosion, thus effectively addressing the issue.

A.

It supplies resources.

B.

It creates new species.

C.

It destroys waste.

D.

It increases pollution.
Correct Answer: A

Solution:

The environment supplies resources, both renewable and non-renewable.

A.

Decrease in sea level

B.

Increase in polar ice

C.

Rise in sea level

D.

Decrease in atmospheric temperature
Correct Answer: C

Solution:

Global warming leads to the melting of polar ice, which results in a rise in sea level.

A.

Building higher sea walls and implementing better drainage systems.

B.

Encouraging more coastal development to boost the economy.

C.

Ignoring the issue as it might not affect the city immediately.

D.

Increasing the use of fossil fuels to boost local industries.
Correct Answer: A

Solution:

Building higher sea walls and better drainage systems are adaptive measures that protect the city from the immediate impacts of rising sea levels.

A.

Increased greenhouse gas emissions

B.

Rise in global temperatures

C.

Increased ultraviolet (UV) radiation reaching the Earth

D.

Decreased levels of atmospheric oxygen
Correct Answer: C

Solution:

Ozone depletion allows more ultraviolet (UV) radiation to reach the Earth, which can cause skin cancer, affect phytoplankton, and influence plant growth.

A.

To promote industrial growth

B.

To manage natural resources

C.

To control water and air pollution

D.

To increase urbanization
Correct Answer: C

Solution:

The Central Pollution Control Board is responsible for controlling water and air pollution in India.

True or False

Correct Answer: True

Solution:

Sustainable development is defined as development that meets the needs of the present generation without compromising the ability of future generations to meet their own needs.

Correct Answer: True

Solution:

Global warming is largely human-induced, caused by increases in carbon dioxide and other greenhouse gases due to activities like burning fossil fuels and deforestation.

Correct Answer: True

Solution:

The CPCB was established to address major environmental concerns, including water and air pollution.

Correct Answer: True

Solution:

Sustainable development is defined as development that meets current needs without compromising future generations' ability to meet their own needs.

Correct Answer: False

Solution:

India's environmental challenges stem from both poverty-induced degradation and pollution from affluence and industrial growth.

Correct Answer: True

Solution:

The environment, left to itself, can continue to support life for millions of years. However, human beings, with modern technology, have the capacity to bring about far-reaching and irreversible changes in the environment.

Correct Answer: False

Solution:

Deforestation increases the amount of carbon dioxide in the atmosphere, contributing to global warming.

Correct Answer: False

Solution:

Renewable resources are those which can be used without the possibility of the resource becoming depleted or exhausted.

Correct Answer: False

Solution:

While the environment can support life, human activities have the potential to cause irreversible changes that disrupt this balance.

Correct Answer: False

Solution:

Global warming is largely human-induced, caused by increases in carbon dioxide and other greenhouse gases due to activities like burning fossil fuels and deforestation.

Correct Answer: True

Solution:

The environment, left to itself, can continue to support life for millions of years. However, human activities can disrupt this balance.

Correct Answer: True

Solution:

The CPCB was set up in 1974 specifically to address major environmental concerns in India, particularly water and air pollution.

Correct Answer: False

Solution:

The CPCB was established to address both water and air pollution in India.

Correct Answer: True

Solution:

Ozone depletion is indeed caused by chlorine and bromine compounds, primarily from chlorofluorocarbons (CFCs) and halons.

Correct Answer: True

Solution:

Deforestation leads to loss of vegetation, which is one of the factors responsible for land degradation.

Correct Answer: False

Solution:

Ozone depletion is primarily caused by human activities, such as the release of chlorofluorocarbons (CFCs) and other ozone-depleting chemicals.

Correct Answer: False

Solution:

The absorptive capacity of the environment is limited, and when exceeded, it leads to environmental crises.

Correct Answer: True

Solution:

Human beings, with modern technology, have the capacity to bring about far-reaching and irreversible changes in the environment.

Correct Answer: True

Solution:

Affluent consumption standards place stress on the environment, contributing to degradation.

Correct Answer: True

Solution:

In urban areas, vehicles are a major source of air pollution due to ground-level emissions.

Correct Answer: True

Solution:

Deforestation and improper crop rotation are among the factors responsible for land degradation, as they lead to soil erosion and nutrient loss.

Correct Answer: False

Solution:

Ozone depletion is primarily caused by high levels of chlorine and bromine compounds in the stratosphere, originating from substances like chlorofluorocarbons (CFCs).

Correct Answer: False

Solution:

Global warming is largely human-induced, mainly due to the increase in greenhouse gases from activities like burning fossil fuels and deforestation.

Correct Answer: True

Solution:

Ozone depletion is caused by high levels of chlorine and bromine compounds in the stratosphere, which originate from CFCs and other chemicals.

Correct Answer: False

Solution:

Much of the recent observed and projected global warming is human-induced, primarily due to man-made increases in carbon dioxide and other greenhouse gases.

Correct Answer: False

Solution:

The increase in greenhouse gases since the Industrial Revolution is a major cause of global warming, which is largely human-induced.

Correct Answer: False

Solution:

Vehicular emissions are a major concern as they contribute significantly to air pollution, especially in urban areas.

Correct Answer: False

Solution:

The environment has a limited absorptive capacity. When the wastes generated exceed this capacity, it leads to an environmental crisis.

Correct Answer: False

Solution:

Environmental problems have existed since the Industrial Revolution, but the scale and impact have increased significantly with population growth and industrialization.

Correct Answer: True

Solution:

Deforestation leads to increased carbon dioxide levels as trees that absorb CO2 are removed, contributing to global warming.

Correct Answer: True

Solution:

Sustainable development involves meeting the basic needs of all and extending opportunities, which requires redistributing resources.

Correct Answer: True

Solution:

Affluent consumption standards are listed as one of the factors contributing to environmental degradation.

Correct Answer: False

Solution:

Ozone depletion is caused by high levels of chlorine and bromine compounds in the stratosphere, primarily from chlorofluorocarbons (CFCs) and bromofluorocarbons (halons).

Correct Answer: False

Solution:

Global warming is largely human-induced, caused by increases in greenhouse gases due to activities like burning fossil fuels and deforestation.

Correct Answer: True

Solution:

The CPCB was indeed set up in 1974 to tackle major environmental concerns such as water and air pollution.

Correct Answer: True

Solution:

Ozone depletion is caused by high levels of chlorine and bromine compounds in the stratosphere, originating from substances like chlorofluorocarbons (CFCs) and bromofluorocarbons (halons).

Correct Answer: True

Solution:

Renewable resources are those which can be used without the possibility of the resource becoming depleted or exhausted.

Correct Answer: True

Solution:

The environment can continue to support life for millions of years if left to itself, as long as the demand on its functions is within its carrying capacity.