Topsoil is a fertile combination of minerals and organosubstrate (microorganisms like bacteria and fungi), which plants need to survive and grow. If it is removed (eroded) by water or wind, the remaining sand or rock will be much less fertile and will hamper plant growth. This can turn valuable agricultural land into deserts.
sedament?
It doesn't. Topsoil absorbs water better than sand and clay.
wind
topsoil?
erosion
sedament?
Erosion causes the loss of topsoil. Topsoil from thousand of acres of farmland lost to water and wind erosion each yaer in the united states alone.
topsoil
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Erosion
It tears earth from the ground and carries it which ever way water flows
When floating seeds are thrown in the running water. These seeds are carried to new locations.
It doesn't. Topsoil absorbs water better than sand and clay.
wind
topsoil?
erosion
The running water carries enough weathered material away to form a deep canyon