Match the columns:
Column-$I$ Column-$II$ $(a)$ Decomposers $(i)$ Bacteria $(b)$ Primary productivity $(ii)$ Consumers $(c)$ Natural ecosystem $(iii)$ Producers $(d)$ Secondary productivity $(iv)$ Forest
| Column-$I$ | Column-$II$ |
|---|---|
| $(a)$ Decomposers | $(i)$ Bacteria |
| $(b)$ Primary productivity | $(ii)$ Consumers |
| $(c)$ Natural ecosystem | $(iii)$ Producers |
| $(d)$ Secondary productivity | $(iv)$ Forest |
- A$a-i, b-iii, c-iv, d-ii$
- B$a-ii, b-i, c-iv, d-iii$
- C$a-i, b-iv, c-iii, d-ii$
- D$a-iii, b-i, c-ii, d-iv$
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