Question

The bulk fixation of carbon through photosynthesis takes place in:

• A. Crop plant and tropical rain forest
• B. Tropical rain forest
• C. Crop plants
• D. Oceans

Hint:

While oceans contribute most globally, crop plants are vital for carbon fixation on land, especially in agriculture.

Answer 1

The Correct Option is C

Step 1: Oceanic fixation is large in total but very diffuse across huge water volumes.
Step 2: Tropical rainforest fixation is concentrated but limited by total forest area.
Step 3: Crop plants, under intensive cultivation across large managed land area, provide the greatest bulk concentrated fixation among the options.
Step 4: The correct option is Crop plants.