FORESTRY
SOIL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is a material found on the surface of the earth consisting of rock, sand, clay, dead plants, and animal remains?
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silt
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soil
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bedrock
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loam
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Explanation:
Detailed explanation-1: -Humus is dark, organic material that forms in soil when plant and animal matter decays. When plants drop leaves, twigs, and other material to the ground, it piles up.
Detailed explanation-2: -The topsoil layer is a mixture of sand, silt, clay and broken down organic matter, called humus. Humus is rich, highly decomposed organic matter mostly made from dead plants, crunched-up leaves, dead insects and twigs.
Detailed explanation-3: -Soil is a mixture of water, air, tiny pieces of rock, and humus. Humus is a rich mixture of the decomposed, or broken down, remains of plants and animals. There are many kinds of soil. Soil can be black, red, brown, gray, and even white.
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