Which physical system includes all plants, animals, and people?
a. atmosphere
b. biosphere
c. lithosphere
d. hydrosphere

Biosphere

Explanation:

The biosphere is the name that is given to the sum of all ecosystems. The biosphere is the system that includes all living beings and their relationships. This sphere interacts with others such as the atmosphere, the lithosphere, the geosphere and the hydrosphere. Therefore, this is the physical system that includes all plants, animals and people.

i believe the correct answer is d

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