Ecology is the study of :

Options

A. man's environment
B. pollution of atmosphere, water and soil
C. the inter-relationships between the living organism environment
D. effects of environment of living organism.

Answer

**Step-by-Step Solution:**

1. **Understanding Ecology**: Start by defining what ecology is. Ecology is the branch of biology that studies the interactions among organisms and their environment.

2. **Identifying Key Components**: Recognize that ecology involves both living (biotic) and non-living (abiotic) components. Living components include plants, animals, and microorganisms, while non-living components include air, water, soil, and climate.

3. **Analyzing the Options**: Look at the provided options:
- Option 1: A man's environment - This is too narrow and does not encompass the broader study of ecology.
- Option 2: Pollution of atmosphere, water, and soil - While pollution is an important issue, it is not the main focus of ecology.
- Option 3: The interrelationship between living organisms and their environment - This option captures the essence of ecology, as it includes the interactions between organisms and their surroundings.
- Option 4: Effects of the environment on living organisms - This is a part of ecology but does not fully define it.

4. **Selecting the Correct Answer**: Based on the analysis, the correct answer is Option 3, which emphasizes the interrelationships between living organisms and their environment.

5. **Conclusion**: Ecology is fundamentally about understanding how living organisms interact with each other and with their physical surroundings.

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