Greenhouse Gases
  • 1. What is the primary source of methane emissions?
A) Transportation
B) Agriculture
C) Industrial processes
D) Deforestation
  • 2. Which greenhouse gas is known for its strong heat-trapping ability?
A) Carbon dioxide
B) Chlorofluorocarbons
C) Methane
D) Nitrous oxide
  • 3. In what way do greenhouse gases contribute to global warming?
A) By causing the ozone layer to thicken
B) By reducing the Earth's magnetic field
C) By reflecting sunlight away from Earth
D) By trapping heat in the atmosphere
  • 4. What is the greenhouse effect?
A) The process by which greenhouse gases trap heat in Earth's atmosphere
B) The process of plants absorbing carbon dioxide
C) The formation of clouds in the sky
D) The cooling effect caused by green rooftops
  • 5. 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
  • 6. What is the main consequence of elevated levels of greenhouse gases in the atmosphere?
A) Cooling of the Earth's surface
B) Global warming
C) Increased ozone depletion
D) Higher levels of oxygen
  • 7. What role does water vapor play in the greenhouse effect?
A) It prevents the penetration of harmful UV rays
B) It amplifies the warming effect of other greenhouse gases
C) It absorbs excess heat from the atmosphere
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) Nitrogen oxide
C) Chlorofluorocarbons
D) Methane
  • 9. What is one natural source of methane emissions?
A) Wetlands
B) Burning fossil fuels
C) Agricultural practices
D) Industrial processes
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