Greenhouse Gases

1. What is the primary source of methane emissions?

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

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

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

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

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

4. What is the greenhouse effect?

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

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

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

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

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

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

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

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

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

9. What is one natural source of methane emissions?

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

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