Chemistry 0620 · IGCSE · Air quality and climate

Air quality and climate — practice question

In what way do carbon dioxide and methane lead to global warming?

  • AThey emit the thermal energy they have absorbed back to the Earth.
  • BThey absorb the radiation directly from the Sun.
  • CThey increase thermal energy loss to space.
  • DThey reduce reflection of thermal energy from the Earth’s surface.

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