Question

what happens if a shop is put on sand​

Answer 1

When we mix sand and water, no reaction takes place. The sand simply settles down at the bottom of the water container. This is because sand is heavier than water and hence cannot float in water. In comparison, if we mix something like salt or sugar in water, they will react and make the water salty or sweet.

Answer 2

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Hydrophobic sand can also be used under concrete foundations to stop water-caused settling or seepage. HST-rolls could help solve erosion concerns along beaches. Typical land use on the left allows water to flow quickly away. With the use of hydrophobic sand bags, right, an artificical water table increases efficiency.