Question

what are the four major biological systems of the earth? what are they deteroiting? ​

Answer 1

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. They supply us food.

Answer 2

Answer:

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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. They supply us food.