Question

On 21^st March and 23^rd September, daytime and night time are same all over the earth. But why do some parts experience summer and some winter on the these days?

Answer 1

(i) If the earth’s axis were not tilted, the same climatic conditions would have prevailed on each of the different parallels throughout the year.

(ii) The seasons would not have occurred. It is due to the tilt of the earth’s axis that some parts of the earth experience summer and some winter on these days.