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Questions and Answers
What is the primary purpose of air quality control measures?
What is the primary purpose of air quality control measures?
- To increase the levels of ozone in the atmosphere
- To maintain high levels of fossil fuel consumption
- To promote industrial growth without restrictions
- To reduce the impact of air pollution on health and the environment (correct)
Which of the following are consequences of ozone layer depletion?
Which of the following are consequences of ozone layer depletion?
- Lower global temperatures
- Increased skin cancer rates due to higher UV exposure (correct)
- More efficient plant growth and crop yield
- Enhanced aquatic ecosystems
What is the purpose of calculating the Air Quality Index (AQI)?
What is the purpose of calculating the Air Quality Index (AQI)?
- To inform the public about pollution levels and their health effects (correct)
- To establish regulations for industrial emissions
- To measure the amount of oxygen in the air
- To determine the economic impacts of air pollution
What is a significant cause of land degradation?
What is a significant cause of land degradation?
Which of the following statements about renewable energy resources is true?
Which of the following statements about renewable energy resources is true?
Which type of waste is classified as hazardous waste?
Which type of waste is classified as hazardous waste?
What is a key threat to biodiversity?
What is a key threat to biodiversity?
What are the three main calorie providers in human diet?
What are the three main calorie providers in human diet?
Flashcards
Greenhouse Effect
Greenhouse Effect
The process by which gases in the atmosphere trap heat from the sun and warm the Earth. This is essential for life, but increased greenhouse gases due to human activities are causing global warming.
What is the Atmosphere?
What is the Atmosphere?
The layers of gases that surround the Earth, protecting us from harmful radiation from the sun. It includes nitrogen, oxygen, carbon dioxide and other gases.
How do we control air pollution?
How do we control air pollution?
The process of reducing pollutants in the air, often involving technological solutions like filters, scrubbers, and catalysts. This aims to improve air quality for humans and the environment.
What is land degradation?
What is land degradation?
The degradation of land, leading to reduced fertility, soil erosion, and loss of productivity. Often caused by unsustainable farming practices, deforestation, and overgrazing.
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How to conserve soil?
How to conserve soil?
A range of techniques to protect soil, including crop rotation, no-till farming, and conservation tillage. These methods help preserve soil health and productivity.
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What is AQI?
What is AQI?
A measure of the quality of the air we breathe, typically based on pollutants like ozone, carbon monoxide, and particulate matter. A higher AQI means more pollution.
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What is Biodiversity?
What is Biodiversity?
The variety of life on Earth, including all species of plants, animals, fungi, and microorganisms. It's essential for ecological balance and provides many benefits to humans.
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How do we deplete our resources?
How do we deplete our resources?
The depletion of natural resources like forests, minerals, and fossil fuels due to overuse and unsustainable practices. This can lead to environmental degradation and scarcity.
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Unit 3: Air: Atmosphere, Pollution, Control and Climate Change
- Atmosphere composition and structure, classification of pollutants
- Air pollution sources and effects on humans, plants, and materials.
- Air Quality Index (AQI) calculation and plume shapes
- Air pollution control laws, modifications in fuels and engines, ambient air quality control
- Stack height control, global warming and greenhouse effect
- Ozone layer depletion and its impact on ecosystems
- International agreements related to climate change
Unit 4: Land: Resources, Pollution and Management
- Importance of land resources, soil formation, soil profiles
- Land degradation causes and effects, soil conversation through sustainable agriculture
- Major categories of soil pollutants and their sources and effects
- Solid waste management classifications, methods of treatment, including bio-medical, non-degradable, hazardous, electronic, and plastic wastes
Unit 5: Energy, Mineral and Food Resources and Biodiversity
- Conventional and non-conventional energy resources
- Non-renewable and renewable energy sources (coal, petroleum, natural gas, solar, wind)
- Mineral definition, importance, minerals in diet (metallic and non-metallic), forest resources direct and indirect benefits
- Forest resource depletion causes and effects, food and the green revolution
- Definition of biodiversity, threats to biodiversity (extinct, endangered, endemic species)
- Biodiversity conservation strategies
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