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General Knowledge QUESTION #4809
Question 1
Which gas is considered the most significant contributor to the greenhouse effect and climate change?
  • Ozone
  • Chlorofluorocarbons
  • Carbon Dioxide✔️
  • Methane
Correct Answer Explanation
Carbon Dioxide (CO2) is considered the most significant greenhouse gas contributing to climate change due to its high concentration in the atmosphere and long atmospheric lifetime, largely from burning fossil fuels.