Question

Why does an army tank weighing more than 1000 tone rests upon a continuous chain?

Answer 1

So as to increase the surface area between tank and resulting surface .As surface area increases presssure is reduced by EQ 1/pressure = surface area

Thus helping the tank to move faster

((To catch the terrrosrists coming from Pakistan))

Answer 2

Because the chain has a larger area and the pressure exerted by the heavy tank on the ground decreases and prevents the tank from sinking into the ground.