Plants absrb water through their roots which are in soil; so there must be water under the soil for the plants to survive.
water
Hard-pan clay soil percolates (drains) water the slowest.
Yes, it is called soil erosion. The plant cover reduces soil erosion by water and wind.
Steepness of land means that water can run down at greater speeds taking with it lose top soil. Once this top soil is gone this means the under soil which is easy to erode is eroded easily by rainfall and so gullies form due to the erosion of the soil. Hope this vaguely answered your questions. :)
no soil absorbs more
A soil boring test gives information on what is under the ground. A farmer may want to know what type of soil layers are in the ground. An engineer may want to know how high the water table is.
Dirt under water.
sandy soil drains water
Because it is not connected to the sea water. It is stored as under ground water
you can get gas under water, usually encased in the soil of the water, carbon dioxide and methane
i don't know clay soil lack air and water
sandy soil drains water
Hard soil does not tire out the joints(thats all i know)
More porous soil (sandy soil) facilitate better movement of water under the ground where as clay obstruct it.
such as a swamp,marsh or bog
the nutrients in the soil under the water, also from the sun
hydropism is when roots of a plant grow only towards the moist soil or any water under the soil...otherwise.. grows to where the water is.