1) A mixture of sand, silt, clay, rock and humus (plant and animal remains) a) soil b) humus c) rock 2) when forces on Earth break rocks apart or wear rock away a) rock b) decomposer c) weathering 3) to rot or break down into smaller parts, more basic parts a) decompose b) decomposer c) decomposition 4) a living organism that breaks down the remains of plants and animals into smaller parts a) decompose b) decomposer c) decomposition 5) the state or process of rotting, decay a) decompose b) decomposer c) decomposition 6) the part of soil made up of decayed parts of once-living things like plants and animals a) subsoil b) humus c) decay 7) the process by which soil is formed as a result of interactions over time between material a) decomposition b) soil formation c) weather 8) Made up of minerals; the hard parts of Earth’s surface a) soil b) rock c) organic matter 9) When plants or animals die, their remains decompose to help form soil a) Plant and Animal remains b) weathering c) decomposer 10) A physical material that a living thing may need or use a) soil b) resource c) humus

Soil Formation

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