Which of the following is an example of a benefit that people receive when they alter the earth’s environmental spheres? a. pollution b. terracing c. acid rain d. eutrophication

The answer would be d because The earth is the 3rd planet from the sun between Venus and Mars. The earth is made up of several unique properties, characteristics, composition and they all affect the processes of the earth differently. Every of these properties and elements in Earth’s system are largely categorized into one of the four major subsystems including water, living things, land, and the air. These are regarded as the four interlocking “wonders” that create the earth’s diversity. Cumulatively, they are primarily grouped into biological (living things) and physical (non-living things).

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