Answer:
It is
because camel's feet have large surface area, the force of their weight is distributed
over a large area of sand. The pressure produced on sand is small and hence, a
camel's feet do not sink into the sand. On the other hand, a man's feet have a
small surface area, the force of their weight is distributed over a smaller
area of sand. The force per unit area or pressure produced on sand is large in
this case due to which a man's feet sink into sand and it becomes difficult for
him to walk on sand.
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