Question

What are the Earth's four spheres? Explain your answer in a paragraph of no fewer than four sentences.

Answer 1

The Earth can be divided into four "spheres" to help us organize it and understand it. First, the atmosphere is made up of the gases that surround the Earth. They help to sustain life by protecting its surface and providing nutrients. Next, the lithosphere is made up of the crust beneath the Earth's surface. It includes important rocks and minerals, as well as the Earth's lands (like its continents and islands). The hydrosphere is made up of the Earth's water, and it covers over 70% of the Earth's surface. Finally, the biosphere is made up of all living things. These living things are part of all of the other spheres.

Step-by-step explanation:

Answer 2

Everything in Earth's system can be placed into one of four major subsystems: land, water, living things, or air. These four subsystems are called “spheres.” Specifically, they are the lithosphere (land), hydrosphere (water), biosphere (living things), and atmosphere (air)