Question

During the last 620 billion years, the earth’s period of rotation is ________ than that of the rotation of earth since its formation.

(a) Faster

(b) Slower

(c) Very faster

(d) No change

The question was asked by my college director while I was bunking the class.

This question is from Tidal and Wave Power in chapter Non Conventional Energy Sources and Storage Devices of Applied Chemistry

Answer 1

Correct choice is (b) Slower

The explanation: As we already came to know that the earth’s rotation was slowed down after 4.5 billion years from its formation. So, for every 4.5 billion years the earth’s rotation slows down more.