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It doesn't. Topsoil absorbs water better than sand and clay.
Humus,sand,clay,and water
water
Clay is very made up of very small tightly fitting particles and is non-porous and does not absorb water, which is why it is used to make pottery and ceramics. Sand is larger particles and can absorb large quantities of water.
by the SUN
Humus,sand,clay,and water
Desert soils contain a high percentage of sand and are low in organic material. This happens in areas where there are few plants that would provide the decayed leaves and other dead organic material called humus. Humus is rich in nutrients and is better able to hold water than sand.
First, the lightest soil component is clay. The, there's sand then humus then finally gravel.
Sand does not 'absorb' oil as it is none absorbant, however oil will coat the particles of sand thereby giving the impression of absorbing oil as this is what it appears to do when the sand is dry
no!
25%-sand 255-clay 25%-gravel 25%-humus
yes