Moderate

Greenhouse effect refers to:

Correct answer: D. Warming of earth

  • A. Production of cereals
  • B. Trapping of UV rays
  • C. Cooling of earth
  • D. Warming of earth

Explanation

The greenhouse effect is the warming of Earth when gases such as carbon dioxide, methane and water vapour absorb outgoing infrared radiation. Trapping UV rays is associated mainly with the ozone layer, not the greenhouse effect.

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