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Ecosystem
Carbon cycle, PAR and productivity
1 question from 1 paper, each with its answer.
- question
- 1
- paper
- 1
- years asked, 2017–2026
- 1 of 10
- of Ecosystem
- 1.18%
Concepts tested
- Carbon cycle, PAR and productivity
All Questions
2022 Phase 2 1 question
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Match List - I with List - II. Choose the correct answer.
Pick the matching item from Column II for each row.
Column I
- A. Carbon dissolved
- B. Annual fixation of Carbon through Photosynthesis
- C. PAR captured by Plants
- D. Productivity of oceans
Column II
- I. 55 billion tons
- II. 71%
- III. $4\times10^{13}$ kg
- IV. 2 to 10%
Correct answer: A → II, B → III, C → IV, D → I
About 71% of carbon is found dissolved in oceans; annual fixation of carbon through photosynthesis is about $4\times10^{13}$ kg; plants capture only 2-10% of PAR (photosynthetically active radiation); productivity of oceans is only 55 billion tons.
