Question

A camel can walk easily on sand but a man cannot. Give reason

Answer 1

This is one of the best adaptation of camel which helps them to survive in the harsh climates of desert . There leg is padded and flat. Which gives them a greater surface area /area of contact with sand hence. There is less pressure on the sand but as humans we have less area of contact /less area which experts greater pressure and so it is difficult for us to walk on sand. I have attached some images which will make you understand how their feet looks like. The third picture shows the relation between area and pressure. It's clear that area is inversely proportional to pressure therefore if the area is less the more pressure will be exerted. But if the area is more the pressure will be less. This is what can be given as a reason to your question.

Answer 2

it is due to the largest feet present in camels legs