Environment

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1. What is the main cause of desertification?

A. Sustainable irrigation

B. Increased rainfall

C. Organic farming

D. Overgrazing, deforestation, and poor land management

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2. Which organization monitors global environmental changes?

A. World Bank

B. Greenpeace

C. NASA

D. United Nations Environment Programme (UNEP)

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3. How does noise pollution affect human health?

A. Improves lung function

B. Reduces mental alertness

C. Causes stress, hearing loss, and sleep disturbances

D. Increases immune response

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

A. Soil erosion

B. Sewage treatment

C. Fossil fuel burning

D. Plastic dumping

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

A. Promote deforestation

B. Increase industrial emissions

C. Regulate air pollution and improve air quality

D. Reduce water usage

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6. How do wetlands help in environmental conservation?

A. Increase global temperature

B. Reduce ocean currents

C. Filter pollutants and prevent flooding

D. Destroy habitats

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7. Which pollutant is most responsible for global warming?

A. Argon (Ar)

B. Nitrogen (N?)

C. Hydrogen (H?)

D. Carbon dioxide (CO?)

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8. What is the major source of water pollution?

A. Industrial waste and sewage discharge

B. Wind erosion

C. Natural rainfall

D. Cloud formation

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

A. Kills marine life and disrupts ecosystems

B. Reduces ocean temperature

C. Improves fish population

D. Prevents hurricanes

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10. How does improper waste disposal affect the environment?

A. Lowers CO? emissions

B. Reduces deforestation

C. Improves biodiversity

D. Causes soil, water, and air contamination

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

A. Coagulation

B. Eutrophication

C. Filtration

D. Aeration

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

A. Wildlife migration

B. Natural disasters

C. Vehicle emissions and industrial activities

D. Solar radiation

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13. Which international day is dedicated to environmental awareness?

A. World Environment Day

B. Wildlife Day

C. Earth Day

D. Forest Conservation Day

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

A. Air pollution

B. Land pollution

C. Noise pollution

D. Water pollution

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15. What is the purpose of afforestation?

A. Decrease air circulation

B. Restore forests and increase carbon absorption

C. Reduce ocean currents

D. Increase industrial growth

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

A. Installing air filters and scrubbers

B. Increasing industrial waste

C. Cutting down more trees

D. Using plastic bags

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

A. Prevents coral bleaching

B. Reduces carbon footprint

C. Ingestion of plastic leads to death and habitat destruction

D. Increases fish population

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18. How does deforestation impact the environment?

A. Prevents soil erosion

B. Increases carbon dioxide levels and loss of biodiversity

C. Improves air quality

D. Reduces global temperature

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

A. Planting trees

B. Natural rainfall

C. Organic farming

D. Excessive use of pesticides and industrial waste

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20. 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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21. Which gas is the main contributor to acid rain?

A. Oxygen (O?)

B. Sulfur dioxide (SO?)

C. Methane (CH?)

D. Nitrogen (N?)

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

A. Air conditioning

B. Using LED lights

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

D. Opening windows

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

A. Burning more coal

B. Increasing fossil fuel use

C. Using public transportation and renewable energy sources

D. Cutting down trees

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

A. Hydrogen (H?)

B. Chlorofluorocarbons (CFCs)

C. Oxygen (O?)

D. Nitrogen (N?)

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

A. Improves soil structure

B. Increases crop yield

C. Reduces soil fertility and kills beneficial organisms

D. Prevents erosion

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