If the ice at the poles melts and flows towards the equator, how will it affect the duration of day-night?

If the ice at the poles melts and flows towards the equator, how will

1.	If the ice at the poles melts and flows towards the equator, how will it affect the duration of day-night?
Answer» Solution :By the LAW of conservation of angular momentum, no external TORQUE acts on EARTH. So its angular momentum is a constant ie., `I omega =a` constant. As ICE meits there is redistribution of mass. Hence the MX of earth increases. So the angular velocity decreases i.e., theperiod ofrotation rincreases. i.e, duration of a day will increase. `T = (2pi)/omega` duration of a day will increase.