Question

The component of environment which deals with soil and rock is known as:

• A. Lithosphere
• B. Biosphere
• C. Atmosphere
• D. Hydrosphere

Hint:

Lithosphere = rocky crust of Earth. Think: “litho” = stone.

Answer 1

The Correct Option is A

To identify the correct environmental component that deals with soil and rock, we analyze Earth's major spheres.

1. Understanding Earth's Spheres:
The environment is composed of four interconnected spheres that each represent different components of Earth's systems.

2. Evaluating Each Option:
- Lithosphere: The rigid outer layer of Earth comprising soil and rock (correct answer)
- Biosphere: Encompasses all living organisms and their relationships
- Atmosphere: The gaseous envelope surrounding Earth
- Hydrosphere: All water bodies on Earth's surface

3. Key Characteristics of Lithosphere:
- Includes Earth's crust and upper mantle
- Composed of both soil and bedrock
- Ranges from 50-200 km in thickness
- Forms the foundation for terrestrial ecosystems

4. Why Other Options Are Incorrect:
- Biosphere focuses on life forms, not their mineral substrate
- Atmosphere deals with air and climate, not solid earth
- Hydrosphere concerns water systems, not land formations

Conclusion:
The lithosphere is the environmental component specifically dealing with soil and rock formations.

Final Answer:
The correct option is: Lithosphere.