The layer of soil that is closest to the surface is known as the ______________ horizon. Question 7 options: a. surface b. organic c. substratum d. bedrock e. subsoil.

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Terrestrial Ecosystem

An ecosystem is a collection of interconnected communities. It includes both living and non-living elements of specific strata. The terrestrial ecosystem is solely related to the ecosystem present on the land and covers 25 to 30% of the total earth’s surface area.