Question

Give reason : The value of 'g' changes along the surface of the earth.

Answer 1

because it changes from place to place

Answer 2

g is gravitational acceleration.

g is inversely proportional to distance ²

So, more the distance from the centre of mass, less will be the acceleration due to gravity.

Since each point on Earth is at a different distance from its centre, the value of g varies, decreasing at the equator and increasing at the poles.