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Natural Resources — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceNatural Resources1 Mark
Question

Green house effect is caused by:

  1. Green plants.
  2. Infrared rays.
  3. UV-rays.
  4. X-rays.
✓

Answer

  1. Infrared rays.

Explanation:

Greenhouse gases trap infrared rays and stop them from escaping the earth’s surface thus causing global warming.

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