Weathering - process by which rocks and other materials are broken down into smaller pieces at Earth’s surface, Humus - the part of soil formed by decaying remains of plants and animals, Soil - a mixture made up of broken-down rock and the decayed remains of once-living things, Soil Horizon - a layer of soil, Pollution - anything that is added to an environment that is harmful to that environment, Conservation - the protection of things found in nature, Terracing - Creating flat steps in the hillside to plant crops also prevents downhill water erosion., Wind Break - Planting tall trees around the farm helps block fast winds., Strip Farming,

Soil

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