The Thin Envelope of Life That Surrounds the Earth's Surface

Question

The thin envelope of life that surrounds the Earth's surface is called the
A)atmosphere.
B)biosphere.
C)lithosphere.
D)hydrosphere.
E)ecosystem.

Accepted Answer

The biosphere refers to the thin layer of living organisms that exist on the Earth's surface. This includes all of the plants, animals, and microorganisms that interact with each other and their physical environment. While the other options (atmosphere, lithosphere, hydrosphere, and ecosystem) are all important components of the Earth's natural systems, they do not encompass the full range of living organisms found on the planet.