Mathc column I with column II and select the correct option from the given codes.
`{:("column I","column II"),("Gross primary productivity",(i)"Geen plants"),("Secondary productivity",(ii)"Rate of synthesis of organic matter by consumers"),("Transducers",(iii)"Total organic matter produced from solar energy"),("Food web",(iv)"Interconnection of food chains"):}

Options

A. I,ii,iii,iv
B. iii,ii,I,iv
C. iii,iv,I,ii
D. ii,I,iv,iii

Answer

To solve the matching question, we will analyze each term in Column I and find its corresponding definition or description in Column II.

### Step-by-Step Solution:

1. **Identify the terms in Column I**:
- Gross primary productivity
- Secondary productivity
- Transducers
- Food web

2. **Understand the definitions in Column II**:
- (i) Green plants
- (ii) Rate of synthesis of organic matter by consumers
- (iii) Total organic matter produced from solar energy
- (iv) Interconnection of food chains

3. **Match each term with its correct definition**:
- **Gross primary productivity**: This refers to the total organic matter produced from solar energy through photosynthesis. Therefore, it matches with **(iii) Total organic matter produced from solar energy**.

- **Secondary productivity**: This refers to the rate of synthesis of organic matter by consumers (secondary consumers). Thus, it matches with **(ii) Rate of synthesis of organic matter by consumers**.

- **Transducers**: In ecological terms, transducers refer to organisms that convert energy from one form to another. Green plants convert solar energy into chemical energy, so this matches with **(i) Green plants**.

- **Food web**: A food web represents the interconnection of various food chains in an ecosystem. Hence, it matches with **(iv) Interconnection of food chains**.

4. **Final Matching**:
- Gross primary productivity → (iii) Total organic matter produced from solar energy
- Secondary productivity → (ii) Rate of synthesis of organic matter by consumers
- Transducers → (i) Green plants
- Food web → (iv) Interconnection of food chains

5. **Select the correct option**: Based on the above matches, the correct option is **B**.