Which is not an abiotic factor ?

Options

A. fire
B. sunlight
C. decomposer
D. water

Answer

To determine which option is not an abiotic factor, we need to understand the distinction between abiotic and biotic factors in an ecosystem. Here’s a step-by-step solution:

### Step 1: Define Abiotic Factors
Abiotic factors are the non-living components of an ecosystem that influence the environment and the living organisms within it. These include physical and chemical elements such as sunlight, water, air, soil, temperature, and minerals.

### Step 2: Identify Biotic Factors
Biotic factors, on the other hand, are the living components of an ecosystem. These include plants, animals, fungi, and microorganisms that interact with each other and with abiotic factors.

### Step 3: List Common Abiotic Factors
Common abiotic factors include:
- Sunlight
- Water
- Soil
- Air
- Temperature
- Minerals

### Step 4: Analyze the Options
When presented with options, we need to identify which one is a living organism or component, as this would indicate it is a biotic factor. For example, if one of the options is "decomposers," that would be a biotic factor, while "water" would be an abiotic factor.

### Step 5: Conclusion
After analyzing the options, the correct answer will be the one that is a living organism or component, thus not an abiotic factor.