Identify the correct match .
1. Stratification : Vertical distribution of different species occupying different levels .
2. Secondary productivity : Amount of biomass or organic matter produced per unit area over a time period by plant during photosynthesis .
3. Primary productivity : Rate of formation of new organic matter by consumers .
4 Decomposition : Break down complex organic matter into inorganic substances like carbon dioxide , water and nutrients

Options

A. 1 and 3
B. 2 and 4
C. 1 and 4
D. 2 and 3

Answer

To solve the question, we need to evaluate each of the provided matches and determine which ones are correct.

### Step-by-Step Solution:

1. **Evaluate Stratification**:
- Definition: Stratification refers to the vertical distribution of different species occupying different levels in an ecosystem.
- Analysis: This definition is correct. For example, in a forest, trees occupy the uppermost layer, shrubs occupy the middle layer, and grasses occupy the ground layer.
- Conclusion: **Match 1 is correct**.

2. **Evaluate Secondary Productivity**:
- Definition: Secondary productivity is the amount of biomass or organic matter produced per unit area over a time period by consumers, not producers.
- Analysis: The statement provided incorrectly describes secondary productivity as being related to plants and photosynthesis, which is actually a description of primary productivity.
- Conclusion: **Match 2 is incorrect**.

3. **Evaluate Primary Productivity**:
- Definition: Primary productivity refers to the rate of formation of new organic matter by producers (plants) during photosynthesis.
- Analysis: The statement provided incorrectly defines primary productivity as the rate of formation of new organic matter by consumers.
- Conclusion: **Match 3 is incorrect**.

4. **Evaluate Decomposition**:
- Definition: Decomposition is the process of breaking down complex organic matter into inorganic substances like carbon dioxide, water, and nutrients.
- Analysis: This definition is accurate, as decomposition involves the breakdown of dead organic material by decomposers such as bacteria and fungi.
- Conclusion: **Match 4 is correct**.

### Final Evaluation:
- Correct matches are:
- Match 1: Stratification - Correct
- Match 2: Secondary productivity - Incorrect
- Match 3: Primary productivity - Incorrect
- Match 4: Decomposition - Correct

Thus, the correct matches are **1 and 4**.