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earth science 2

Decomposition when something that is dead goes through a chemical process and it breaks down into the soil making the soil much richer
soil the upper layer of Earth consisting of a mixture of organic remains, rocks and clay particles
gravel smaller stones, pebbles of rock, no water stays, no nutrients
particles very small in size, tiny, a speck, crumb
retain to keep in or hold back
sediment particles of matter could be sand, silt, shell and other substances that are carried then deposited
sand tiny particles of broken down rock, about the size of salt, loses water, no nutrients
silt finer and softer sand, like flour, silky smooth, slippery when wet
clay a sticky when wet, fine grained soil that does not allow water to flow through easily
humus dark and chunky soil full of organic matter and plants, sticks and leaves
loam the best soil of all because it's a mixture of humus, clay, and sand
Delta created by the deposition of sediment. opens at the mouth of streams and rivers
Created by: erin.mcpherson2