Distinguish between the four main Earth system spheres. Which of the following contains solid rock below and at Earths surface?

Answer 1

The Earth is composed of four main spheres, each representing different components of the Earth's system:

1. Lithosphere: This sphere encompasses the solid outer part of the Earth, which includes the crust and the uppermost portion of the mantle. It consists of solid rock and is where geological processes like plate tectonics occur.

2. Atmosphere: This refers to the layer of gases surrounding the Earth, extending from the surface to several hundred kilometers above. It includes the air we breathe and is essential for weather and climate regulation.

3. Hydrosphere: This sphere includes all water found on Earth, such as oceans, rivers, lakes, glaciers, and groundwater. It plays a crucial role in supporting life and regulating temperature.

4. Biosphere: This encompasses all living organisms on Earth, as well as the environments in which they live. It interacts with the other spheres, as life depends on the lithosphere, hydrosphere, and atmosphere.

Among these spheres, the lithosphere is the one that contains solid rock, both below and at the Earth's surface.