Environment

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1. What is the purpose of afforestation?

A. Increase industrial growth

B. Decrease air circulation

C. Reduce ocean currents

D. Restore forests and increase carbon absorption

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2. What is the main reason for the depletion of the ozone layer?

A. Nitrogen (N?)

B. Hydrogen (H?)

C. Oxygen (O?)

D. Chlorofluorocarbons (CFCs)

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3. How does deforestation impact the environment?

A. Improves air quality

B. Reduces global temperature

C. Prevents soil erosion

D. Increases carbon dioxide levels and loss of biodiversity

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4. Which human activity is a major cause of groundwater pollution?

A. Sustainable farming

B. Uncontrolled industrial waste dumping

C. Recycling plastic

D. Tree planting

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5. How do wetlands help in environmental conservation?

A. Destroy habitats

B. Reduce ocean currents

C. Filter pollutants and prevent flooding

D. Increase global temperature

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6. Which of the following is a major cause of soil pollution?

A. Excessive use of pesticides and industrial waste

B. Natural rainfall

C. Organic farming

D. Planting trees

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7. How does noise pollution affect human health?

A. Reduces mental alertness

B. Increases immune response

C. Causes stress, hearing loss, and sleep disturbances

D. Improves lung function

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8. What is the impact of pesticides on soil health?

A. Reduces soil fertility and kills beneficial organisms

B. Improves soil structure

C. Prevents erosion

D. Increases crop yield

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9. What is the main effect of plastic pollution on marine life?

A. Reduces carbon footprint

B. Increases fish population

C. Prevents coral bleaching

D. Ingestion of plastic leads to death and habitat destruction

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10. What is the main cause of desertification?

A. Overgrazing, deforestation, and poor land management

B. Sustainable irrigation

C. Organic farming

D. Increased rainfall

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11. Which method is commonly used to reduce industrial air pollution?

A. Increasing industrial waste

B. Cutting down more trees

C. Using plastic bags

D. Installing air filters and scrubbers

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12. What is the best way to reduce air pollution?

A. Cutting down trees

B. Burning more coal

C. Increasing fossil fuel use

D. Using public transportation and renewable energy sources

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13. Which process helps purify wastewater before releasing it into the environment?

A. Fossil fuel burning

B. Soil erosion

C. Plastic dumping

D. Sewage treatment

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14. What is a major effect of oil spills in oceans?

A. Improves fish population

B. Kills marine life and disrupts ecosystems

C. Prevents hurricanes

D. Reduces ocean temperature

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15. Which gas is the main contributor to acid rain?

A. Sulfur dioxide (SO?)

B. Oxygen (O?)

C. Methane (CH?)

D. Nitrogen (N?)

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16. What is the major source of water pollution?

A. Natural rainfall

B. Wind erosion

C. Industrial waste and sewage discharge

D. Cloud formation

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17. What is the primary cause of air pollution in urban areas?

A. Natural disasters

B. Solar radiation

C. Vehicle emissions and industrial activities

D. Wildlife migration

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18. Which organization monitors global environmental changes?

A. Greenpeace

B. NASA

C. World Bank

D. United Nations Environment Programme (UNEP)

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19. How does improper waste disposal affect the environment?

A. Reduces deforestation

B. Improves biodiversity

C. Lowers CO? emissions

D. Causes soil, water, and air contamination

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20. Which type of pollution can be reduced by using catalytic converters in vehicles?

A. Noise pollution

B. Water pollution

C. Air pollution

D. Land pollution

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21. What is the term used for excessive nutrient pollution in water bodies?

A. Aeration

B. Filtration

C. Eutrophication

D. Coagulation

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22. Which pollutant is most responsible for global warming?

A. Argon (Ar)

B. Hydrogen (H?)

C. Nitrogen (N?)

D. Carbon dioxide (CO?)

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23. Which international day is dedicated to environmental awareness?

A. Wildlife Day

B. World Environment Day

C. Earth Day

D. Forest Conservation Day

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24. What is the main cause of indoor air pollution?

A. Air conditioning

B. Indoor smoking, cooking with solid fuels, and poor ventilation

C. Opening windows

D. Using LED lights

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25. What is the purpose of the Clean Air Act?

A. Promote deforestation

B. Regulate air pollution and improve air quality

C. Increase industrial emissions

D. Reduce water usage

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