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Greenhouse Gases - Exam
  • 1. What is the primary source of methane emissions?
A) Deforestation
B) Industrial processes
C) Agriculture
D) Transportation
  • 2. Which greenhouse gas is known for its strong heat-trapping ability?
A) Nitrous oxide
B) Carbon dioxide
C) Chlorofluorocarbons
D) Methane
  • 3. In what way do greenhouse gases contribute to global warming?
A) By reducing the Earth's magnetic field
B) By reflecting sunlight away from Earth
C) By causing the ozone layer to thicken
D) By trapping heat in the atmosphere
  • 4. 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
  • 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 amplifies the warming effect of other greenhouse gases
D) It absorbs excess heat from the atmosphere
  • 6. What is the greenhouse effect?
A) The process of plants absorbing carbon dioxide
B) The process by which greenhouse gases trap heat in Earth's atmosphere
C) The cooling effect caused by green rooftops
D) The formation of clouds in the sky
  • 7. What is one natural source of methane emissions?
A) Wetlands
B) Agricultural practices
C) Industrial processes
D) Burning fossil fuels
  • 8. 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) Higher levels of oxygen
D) Global warming
  • 9. Which greenhouse gas is most responsible for the ozone hole over Antarctica?
A) Carbon dioxide
B) Nitrogen oxide
C) Methane
D) Chlorofluorocarbons
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