Greenhouse Gases

1. What is the primary source of methane emissions?

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

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

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

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

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

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

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

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

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

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

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

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

9. What is one natural source of methane emissions?

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

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