Which of the following best explains the importance of earth’s crust to living organisms? a. the continental crust allowed the evolution of life on land. b. the crust provides raw materials necessary for life. c. the crust allowed the formation of fossil fuels. d. the rock cycle recycles sedimentary rocks formed from animal shells.

The correct answer is (b). The crust provides raw materials necessary for life.

The crust is the outermost layer of the earth that is composed of several life supporting elements. Organic materials, humus, nutrients are present in this layer which is required by the plants to make food by the process of photosynthesis. This food is required by all the organisms on this earth to survive. The organisms that survive their takes the nutrients from the the organic substance to make their food and survive.

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