$A$ person will get more quantity of matter in $kg-wt$ at which of the following locations?

Choose the correct statement.

How does the acceleration due to gravity $(g)$ at a location on Earth change with latitude?

If the density of the Earth increases $4$ times and its radius becomes half of its present value,our weight will

The acceleration due to gravity on the earth's surface at the poles is $g$ and the angular velocity of the earth about the axis passing through the poles is $\omega$. An object is weighed at the equator and at a height $h$ above the poles by using a spring balance. If the weights are found to be the same,then $h$ is: ($h << R$,where $R$ is the radius of the earth)

Write the equation of gravitational acceleration which is used for any height $h$ from the surface of the Earth.