Chemistry 0620 · IGCSE · Air quality and climate

Air quality and climate — practice question

Which statement explains how greenhouse gases cause global warming to increase?

  • AGreenhouse gases absorb thermal energy from the Sun, reducing the Earth’s temperature.
  • BGreenhouse gases reflect thermal energy back into space, cooling the Earth’s surface.
  • CGreenhouse gases absorb and re-emit thermal energy radiated from the Earth’s surface.
  • DGreenhouse gases release thermal energy from the Earth into space.

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