1) What is the breaking down of rocks and minerals on the surface of the Earth called? a) Erosion b) Weathering 2) Organic material contains what? a) Anything that contains nitrogen compounds that were formed by living organisms. b) Broken down living things. c) Anything that contains carbon compounds that were formed by living organisms. 3) What is the process to make soil? a) Organic materials and rocks get eroded into soil. b) Organic materials and rocks get weathered into soil. c) Plant matter gets weathered into soil.

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