What is soil?, The hottest part of the earth, B. The top layer of the Earth where plants grow, Which of the following is NOT a part of soil?, A. Plastic, B. Water and air, Soil is formed when rocks break down into tiny pieces over a (______) time., A. Short, B. Long, Which helps break rocks into smaller pieces?, A. Wind, water, and temperature changes, B. Only animals, Dead plants and animals in the soil are called (______), A. Minerals, B. Organic matter, What Earth sphere refers to land and rocks?, A. Atmosphere, B. Lithosphere, What living organism helps break down rocks by releasing substances?, A. Fish, B. Lichens, How does water help in breaking rocks?, A. By freezing in cracks, B. By making rocks shiny, Rocks expand during the day and contract at night because of ______., A. Changes in size, B. Changes in color, Soil is formed by the combination of which processes?, A. Physical, chemical, and biological processes, B. Only physical processes.

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