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NEST2024BiologyEcosystem

The effects of elevated CO ₂ supply, presence of legume and phosphate availability on the above-ground biomass production of a grassland community is depicted in the graph. Based on this information, the correct option is:

Options

  1. ANitrogen-deprived plants grow faster under ambient CO ₂ condition.
  2. BThe growth of plants is enhanced under elevated CO ₂ condition in presence of legume.
  3. CIn the absence of phosphate, legume provides no growth benefit to the plant.
  4. DIn the presence of legume, there is no growth benefit on addition of phosphate under elevated CO ₂ condition.

Correct answer

B. The growth of plants is enhanced under elevated CO ₂ condition in presence of legume.

Step-by-step solution

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