Term 'biosphere' is used for the zone of earth where life exists

Options

A. On lithosphere
B. In the hydrosphere
C. In the lithosphere and hydrosphere
D. In the lithosphere, hydrosphere and atomosphere

Explanation

### Step-by-Step Solution:

1. **Understanding the Term 'Biosphere':**
- The biosphere refers to the zone of Earth where life exists. It encompasses all living organisms and their interactions with the environment.

2. **Identifying Components of the Biosphere:**
- The biosphere is not limited to just one component of the Earth. It includes:
- **Lithosphere:** The land or solid surface of the Earth.
- **Hydrosphere:** All water bodies, including oceans, rivers, lakes, and ponds.
- **Atmosphere:** The layer of gases surrounding the Earth, essential for respiration and weather.

3. **Analyzing the Options:**
- **Option A (on lithosphere):** Incorrect, as life cannot exist solely on land without water and air.
- **Option B (in the hydrosphere):** Incorrect, as life cannot exist solely in water without land and air.
- **Option C (in the lithosphere and hydrosphere):** Incorrect, as this ignores the necessity of the atmosphere for life.
- **Option D (in the lithosphere, hydrosphere, and atmosphere):** Correct, as all three components are necessary for the existence of life.

4. **Conclusion:**
- The biosphere is formed by the interaction of the lithosphere, hydrosphere, and atmosphere. This combination creates an environment where life can thrive, making **Option D** the correct answer.