NEET Botany Algae MCQ Question
If 50% of the total carbon dioxide fixation on Earth is carried out by algae, and the total global carbon dioxide fixation is 100 gigatons per year, how much carbon dioxide do algae fix annually?
50 gigatons
25 gigatons
75 gigatons
100 gigatons
Correct Answer
Detailed Explanation
According to the NCERT context, algae are responsible for at least half of the total carbon dioxide fixation on Earth. Therefore, if the total fixation is 100 gigatons, algae fix 50% of this, which is 50 gigatons.
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