Environment

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1 / 25

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

A. Using LED lights

B. Air conditioning

C. Opening windows

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

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

A. Increases crop yield

B. Reduces soil fertility and kills beneficial organisms

C. Improves soil structure

D. Prevents erosion

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

A. Reduces carbon footprint

B. Prevents coral bleaching

C. Ingestion of plastic leads to death and habitat destruction

D. Increases fish population

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4. How do wetlands help in environmental conservation?

A. Reduce ocean currents

B. Destroy habitats

C. Increase global temperature

D. Filter pollutants and prevent flooding

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5. Which international day is dedicated to environmental awareness?

A. Earth Day

B. World Environment Day

C. Forest Conservation Day

D. Wildlife Day

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

A. Oxygen (O?)

B. Chlorofluorocarbons (CFCs)

C. Hydrogen (H?)

D. Nitrogen (N?)

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

A. Plastic dumping

B. Soil erosion

C. Fossil fuel burning

D. Sewage treatment

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

A. Filtration

B. Coagulation

C. Eutrophication

D. Aeration

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

A. Planting trees

B. Excessive use of pesticides and industrial waste

C. Organic farming

D. Natural rainfall

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

A. Methane (CH?)

B. Nitrogen (N?)

C. Sulfur dioxide (SO?)

D. Oxygen (O?)

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11. 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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12. What is the purpose of afforestation?

A. Restore forests and increase carbon absorption

B. Reduce ocean currents

C. Decrease air circulation

D. Increase industrial growth

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

A. Increasing industrial waste

B. Using plastic bags

C. Installing air filters and scrubbers

D. Cutting down more trees

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14. Which organization monitors global environmental changes?

A. NASA

B. United Nations Environment Programme (UNEP)

C. World Bank

D. Greenpeace

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

A. Recycling plastic

B. Tree planting

C. Uncontrolled industrial waste dumping

D. Sustainable farming

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16. What is the main cause of desertification?

A. Sustainable irrigation

B. Overgrazing, deforestation, and poor land management

C. Increased rainfall

D. Organic farming

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

A. Reduce water usage

B. Promote deforestation

C. Increase industrial emissions

D. Regulate air pollution and improve air quality

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18. How does noise pollution affect human health?

A. Reduces mental alertness

B. Improves lung function

C. Causes stress, hearing loss, and sleep disturbances

D. Increases immune response

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

A. Increasing fossil fuel use

B. Burning more coal

C. Cutting down trees

D. Using public transportation and renewable energy sources

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20. 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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21. How does improper waste disposal affect the environment?

A. Causes soil, water, and air contamination

B. Lowers CO? emissions

C. Reduces deforestation

D. Improves biodiversity

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

A. Improves fish population

B. Reduces ocean temperature

C. Kills marine life and disrupts ecosystems

D. Prevents hurricanes

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

A. Solar radiation

B. Vehicle emissions and industrial activities

C. Natural disasters

D. Wildlife migration

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24. How does deforestation impact the environment?

A. Reduces global temperature

B. Improves air quality

C. Prevents soil erosion

D. Increases carbon dioxide levels and loss of biodiversity

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25. What is the major source of water pollution?

A. Wind erosion

B. Industrial waste and sewage discharge

C. Natural rainfall

D. Cloud formation

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