Question

Earth’s four major spheres are the _____.

Answer 1

Earth’s four major spheres are the "lithosphere" (land), "hydrosphere" (water), "biosphere" (living things), and "atmosphere" (air).

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Answer 2

"Earth has four significant spheres. They are,

 1.    Lithosphere

  2.    Hydrosphere

 3.    Atmosphere

4.    Biosphere.

Lithosphere refers to land, hydrosphere means water, atmosphere means air, and biosphere means living things. These four significant spheres are subsystems of the earth.

Hydrosphere is known as the most massive sphere as the amount of water on earth is more than any of the layers.

These spheres contain different layers which are stable, semi-solid and gaseous.

Therefore, the answer is, ‘Earth has four major spheres, lithosphere, hydrosphere, atmosphere and biosphere’."""