NEET Botany Algae MCQ Question
If the total carbon dioxide fixation on Earth is 200 billion tons, how much of it is carried out by algae through photosynthesis?
100 billion tons
50 billion tons
150 billion tons
200 billion tons
Correct Answer
Detailed Explanation
According to the NCERT context, at least half of the total carbon dioxide fixation on Earth is carried out by algae. Therefore, if the total fixation is 200 billion tons, algae are responsible for fixing 100 billion tons.
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