Which of the following is not an abiotic component of an ecosystem :-

Options

A. water
B. minerals
C. litter
D. micro-organisms

Answer

**Step-by-Step Solution:**

1. **Understand the Components of an Ecosystem**: Ecosystems are made up of two main types of components: abiotic and biotic. Abiotic components refer to the non-living parts of an ecosystem, while biotic components refer to the living organisms.

2. **Identify the Options Given**: The options provided in the question are:
- Water
- Minerals
- Litter
- Microorganisms

3. **Classify Each Option**:
- **Water**: This is a vital abiotic component, as it is a non-living element that supports life.
- **Minerals**: These are also abiotic components, as they are inorganic substances found in the environment.
- **Litter**: This refers to organic matter (like fallen leaves) that is also considered an abiotic component because it is non-living material in the ecosystem.
- **Microorganisms**: These are living organisms, such as bacteria and fungi, which are classified as biotic components of the ecosystem.

4. **Determine the Correct Answer**: Since the question asks for the option that is not an abiotic component, we can conclude that microorganisms are the only living organisms among the options listed. Thus, they do not belong to the abiotic category.

5. **Final Answer**: The correct answer is **microorganisms**.

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