Biology, asked by sashdi3804, 1 year ago

What are the earth's biological system? How do they sustain humanity?

Answers

Answered by catropnova
1

Explanation:

There are four principal biological systems of the earth. They are fisheries, forests, grasslands and croplands. They form the foundation of the global economic system. ... Human demands on these systems are increasing to a point where their productivity is impaired.

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