Multiple choice

What do plants take in during day time?

  1. Take CO2 and give O2

  2. Take O2 and give O2

  3. Take CO2 and give CO2

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

During daylight, plants perform photosynthesis, taking in carbon dioxide (CO2) and releasing oxygen (O2) as a byproduct. At night, they primarily respire, taking in O2 and releasing CO2. Options B and C incorrectly state the gas exchanges, and D is wrong because photosynthesis does occur during the day.

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