Engineering Board Exam Reviewer · Chemistry · medium

The greenhouse effect is caused by atmospheric gases that:

  1. Reflect all sunlight back to space
  2. Absorb and re-emit infrared radiation from the Earth's surface
  3. Absorb ultraviolet radiation only
  4. Destroy the ozone layer

Answer

B. Absorb and re-emit infrared radiation from the Earth's surface

Solution

CO2, CH4, N2O and water vapor trap outgoing infrared radiation.

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