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Greenhouse Gases
Contributed by: Christie
  • 1. What is the primary source of methane emissions?
A) Agriculture
B) Transportation
C) Industrial processes
D) Deforestation
  • 2. Which greenhouse gas is known for its strong heat-trapping ability?
A) Methane
B) Chlorofluorocarbons
C) Nitrous oxide
D) Carbon dioxide
  • 3. In what way do greenhouse gases contribute to global warming?
A) By trapping heat in the atmosphere
B) By reflecting sunlight away from Earth
C) By causing the ozone layer to thicken
D) By reducing the Earth's magnetic field
  • 4. Which human activity has led to an increase in atmospheric carbon dioxide levels?
A) Building wind turbines
B) Burning of fossil fuels
C) Reducing meat consumption
D) Recycling
  • 5. What role does water vapor play in the greenhouse effect?
A) It prevents the penetration of harmful UV rays
B) It creates a cooling effect in the upper atmosphere
C) It absorbs excess heat from the atmosphere
D) It amplifies the warming effect of other greenhouse gases
  • 6. 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
  • 7. What is one natural source of methane emissions?
A) Industrial processes
B) Agricultural practices
C) Burning fossil fuels
D) Wetlands
  • 8. 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) Increased ozone depletion
D) Global warming
  • 9. Which greenhouse gas is most responsible for the ozone hole over Antarctica?
A) Chlorofluorocarbons
B) Nitrogen oxide
C) Carbon dioxide
D) Methane
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