Biosphere is :

Options

A. In which individual interact to each other
B. By which life originated
C. The name of a bird
D. Organic compound by which life diminishes

Answer

**Step-by-Step Solution:**

1. **Definition of Biosphere**: The biosphere is defined as the global sum of all ecosystems. It is the zone of life on Earth, a closed system, and largely self-regulating. It includes the lithosphere (land), hydrosphere (water), and atmosphere (air).

2. **Components of the Biosphere**: The biosphere encompasses various components:
- **Lithosphere**: The outer part of the Earth, consisting of soil and rocks.
- **Hydrosphere**: All the water bodies on Earth, including oceans, rivers, lakes, and groundwater.
- **Atmosphere**: The layer of gases surrounding the planet.

3. **Interactions in the Biosphere**: In the biosphere, living organisms (plants, animals, microorganisms) interact with each other and their environment. These interactions can be in the form of food chains, symbiotic relationships, and competition.

4. **Evaluating the Options**:
- **Option 1**: "In which individuals interact with each other." This is true as the biosphere is a space where various organisms interact.
- **Option 2**: "By which life originated." This does not accurately describe the biosphere.
- **Option 3**: "The name of a bird." This is incorrect.
- **Option 4**: "Organic compound." The biosphere is not an organic compound.

5. **Conclusion**: Based on the evaluation of the options, the correct answer is **Option 1**: "In which individuals interact with each other."

---