question_answer

Quicksand consists of very smooth and tiny grains of sand. What could happen if a man or heavy animal steps over a patch of such sand in a desert?

Answer:

When a man or heavy animal steps over a patch of quicksand, his feet sink into the sand. This is because the body weight acts on a small area and as a result, the downward pressure is very large. The fine grains of quicksand move under this high pressure.