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Question

Q35. ANSWER - 3
Due to global warming , ice on polar caps ia likely to melt in larger quantity, due to this effect
(1) Moment of inertia of earth shall decrease
(2) Length of the day shall decrease
(3) Angular velocity of earth shall decrease
(4) Angular momentum of earth shall decrease

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Solution

Dear Student

When ice on polar caps is likely to melt due to global warming in larger quantity then mass of earth gets distributed and it will go further from axis of rotation hence earth's moment of inertia will increase. Since the Earth's angular momentum will not change, that means that its angular velocity (rate of turning) will decrease

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