Question

Statement-1: There is almost no effect of rotation of the earth at poles.
Statement-2: Because the rotation of the earth is about the polar axis.
(A) Both statements 1 & 2 are true. Statement 2 is correct explanation for statement 1
(B) Both statement 1 & 2 are true but Statement 2 is not a correct explanation for statement 1
(C) Statement 1 is true but statement 2 is false.
(D) Statement 1 is false but statement 2 is true.

Answer 1

Earth rotates about its axis and also rotates around the sun. The former is called rotation while the latter is called revolution. Earth is not perfect. Because of the force caused when Earth rotates, the North and South Poles are slightly flat. The rotation of the earth causes the days and night.

Complete step by step answer:
The earth rotates about a line, which connects the north pole with the south pole and is called the axis of rotation or the polar axis. So, one thing is clear that earth rotates about its polar axis. Now we have to see the effect of this rotation around the poles. If an observer is situated around the pole and now if he observes the rotation then he won’t find any significant effect. This is because concerning the observer horizon as things tend to rotate, they do that almost entirely horizontally and as such for him there is almost no effect of rotation of the earth.Hence the validity of both the statements held and statement 2 is a correct explanation of statement 1.
Hence the correct option is (A).

Note: The earth rotates counterclockwise always as viewed from the north pole. When the earth rotates on its spin axis it drifts and wobbles. These spin-axis movements are scientifically referred to as "polar motion."