Match the items given in column I with appropriate items (one or more) given in column II.
`{:((i),"Natural ecosystem",(a),"Producers"),((ii),"Decomposers",(b),"Consumers"),((iii),"Primary productivity",(c),"Forest"),((iv),"Secondary productivity",(d),"Lake"),((v),"Desert",(e),"Bacteria"),(,,(f),"Biome"),(,,(g),"Fungi"):}`

Explanation

To solve the matching question, we will analyze each item in Column I and find the appropriate matches in Column II.

### Step-by-Step Solution:

1. **Natural Ecosystem (i)**:
- A natural ecosystem includes areas where living organisms interact with their environment without human intervention. Examples include forests and lakes.
- **Matches**: (c) Forest, (d) Lake.

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