Multiple choice

How does photosynthesis reduce global warming?

  1. Photosynthesis gives out O2.

  2. Photosynthetic plants absorb toxins from air.

  3. It decreases the concentration of CO2.

  4. Photosynthetic plants bring rain.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Photosynthesis decreases the concentration of CO2 which is being added to the atmosphere by the respiration of organisms and burning of organic fuels. The reduction in the concentration of CO2 reduces global warming.

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