Greenhouse Gases

1. What is the primary source of methane emissions?

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

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

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

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

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

4. What is the greenhouse effect?

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

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

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

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

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

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

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

9. What is one natural source of methane emissions?

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

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