Question

Plants always take in carbon dioxide and release oxygen.

(a) True

(b) False

I have been asked this question at a job interview.

I would like to ask this question from Environmental Chemistry topic in division Environmental Chemistry of Chemistry – Class 11

Answer 1

The correct answer is (b) False

The explanation: Plants do not always take in carbon dioxide and release oxygen. Plants take in carbon dioxide during the day for the process of photosynthesis and release oxygen into the atmosphere. But at night, photosynthesis does not occur, due to the absence of sunlight, and therefore plants take in oxygen for breathing and give out carbon dioxide.