Match List-I with List-II
| List-I | List-II |
|---|---|
| Aspect | Explanation |
| (A) Productivity | (I) Photosynthetically active radiation |
| (B) Nutrient Cycling | (II) Breakdown of organic matter |
| (C) Energy Flow | (III) Rate of biomass production |
| (D) Decomposition | (IV) Sedimentary |
Choose the correct answer from the options given below.
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → (A)-(III), (B)-(IV), (C)-(I), (D)-(II)
(A) Productivity — this matches (III) Rate of biomass production. Productivity is how fast organic matter is made, expressed as g m−2 yr−1 or kcal m−2 yr−1.
(B) Nutrient Cycling — this matches (IV) Sedimentary. Nutrient cycles are of two types, gaseous and sedimentary; in a sedimentary cycle (phosphorus, sulphur) the reservoir is the earth’s crust.
(C) Energy Flow — this matches (I) Photosynthetically active radiation. Energy enters the ecosystem as PAR captured by plants in photosynthesis.
(D) Decomposition — this matches (II) Breakdown of organic matter. Decomposers break dead organic matter into inorganic substances such as CO2, water and nutrients.