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plz ans my question
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Answers
Explanation:
->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. This material is called leaf litter. ... The thick brown or black substance that remains after most of the organic litter has decomposed is called humus
->Weathering is the breakdown of rocks and minerals into soils. Rocks are broken into three major groups: sedimentary, igneous, and metamorphic.
->Clay soils are heavy, high in nutrients, wet and cold in winter and baked dry in summer
Sandy soils are light, dry, warm, low in nutrients and often acidic
Silt soils are fertile, light but moisture-retentive, and easily compacted
Loams are mixtures of clay, sand and silt that avoid the extremes of each type
Peat soils are very high in organic matter and moisture
Chalky soils are very alkaline and may be light or heavy
