Greenhouse Gases

1. What is the primary source of methane emissions?

A) Transportation
B) Industrial processes
C) Deforestation
D) Agriculture

2. Which greenhouse gas is known for its strong heat-trapping ability?

A) Methane
B) Carbon dioxide
C) Chlorofluorocarbons
D) Nitrous oxide

3. In what way do greenhouse gases contribute to global warming?

A) By reflecting sunlight away from Earth
B) By reducing the Earth's magnetic field
C) By trapping heat in the atmosphere
D) By causing the ozone layer to thicken

4. What is the greenhouse effect?

A) The cooling effect caused by green rooftops
B) The formation of clouds in the sky
C) The process by which greenhouse gases trap heat in Earth's atmosphere
D) The process of plants absorbing carbon dioxide

5. Which human activity has led to an increase in atmospheric carbon dioxide levels?

A) Burning of fossil fuels
B) Reducing meat consumption
C) Recycling
D) Building wind turbines

6. What is the main consequence of elevated levels of greenhouse gases in the atmosphere?

A) Higher levels of oxygen
B) Cooling of the Earth's surface
C) Global warming
D) Increased ozone depletion

7. What role does water vapor play in the greenhouse effect?

A) It creates a cooling effect in the upper atmosphere
B) It amplifies the warming effect of other greenhouse gases
C) It absorbs excess heat from the atmosphere
D) It prevents the penetration of harmful UV rays

8. Which greenhouse gas is most responsible for the ozone hole over Antarctica?

A) Carbon dioxide
B) Nitrogen oxide
C) Methane
D) Chlorofluorocarbons

9. What is one natural source of methane emissions?

A) Burning fossil fuels
B) Agricultural practices
C) Wetlands
D) Industrial processes

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