Four major abiotic factors are listed. Choose the option which arranges them correctly in increasing order of their ecological relevance.

Options

A. Temperature , water , ligh ,soil
B. Water, Temperature, Soil, Light
C. Light, Soil, Temperautre, Water
D. Soil, Light, Water, Temperature

Explanation

To solve the question regarding the increasing order of ecological relevance of the four major abiotic factors—soil, light, water, and temperature—we will analyze each factor step by step.

### Step-by-Step Solution:

1. **Identify the Abiotic Factors**: The four abiotic factors mentioned are soil, light, water, and temperature.

2. **Assess the Ecological Relevance**:
- **Soil**: Soil is fundamental as it provides nutrients and a medium for plant growth. It is essential for the formation of ecosystems and supports various life forms.
- **Light**: Light, particularly sunlight, is crucial for photosynthesis, which allows plants to produce food and oxygen. It is a primary energy source for most ecosystems.
- **Water**: Water is vital for all living organisms. It is necessary for metabolic processes, growth, and reproduction. It is often referred to as the essence of life.
- **Temperature**: Temperature affects metabolic rates and enzyme activity in organisms. It influences the distribution of species and the functioning of ecosystems.

3. **Rank the Factors**: Based on their ecological relevance:
- **First**: Soil (foundation for ecosystems)
- **Second**: Light (energy source for photosynthesis)
- **Third**: Water (essential for life)
- **Fourth**: Temperature (affects metabolic processes)

4. **Choose the Correct Option**: The correct arrangement in increasing order of ecological relevance is:
- Soil → Light → Water → Temperature

5. **Select the Answer**: Based on the analysis, the correct option is the fourth one: **Soil, Light, Water, Temperature**.

### Final Answer:
The correct option that arranges the abiotic factors in increasing order of their ecological relevance is the fourth option: **Soil, Light, Water, Temperature**.

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