Assertion: A spherical water drops become flaton flatter surface.
Reason : It become flat due to gravity.

Water drops stick to a glass surface due to

Water drops stick to a glass surface due to

Assertion : Water drop stick to glass surface. Reason : Water have properties of surface tension.

Assertion : Small water drops are sperical while bigger water drops are not. Reason : In small water drops surface tension forces dominate while in bigger water drops gravity forces dominate.

Assertion: A body becomes weightless at the centre of earth. Reason: As the distance form centre of earth decreases, acceleration due to gravity increases.