Question (271/279)
Elliptical shape of Earth has caused due to what?(A) Revolution around the Sun
(B) Gravitational Force
(C) Centrifugal Force of own rotation
(D) Inclination on own axis
Question (272/279)
The layer of atmosphere nearest to the earth surface is called as?(A) Exosphere
(B) Ionosphere
(C) Stratosphere
(D) Troposphere