SSC MTS EXAM

Detailed explanation-1: -As the earth spins on its axis, producing night and day, it also moves about the sun in an elliptical (elongated circle) orbit that requires about 365 1/4 days to complete. The earth’s spin axis is tilted with respect to its orbital plane. This is what causes the seasons.

Detailed explanation-2: -The seasons are caused as the Earth, tilted on its axis, travels in an orbit around the Sun each year. Summer happens in the hemisphere tilted towards the Sun, and winter happens in the hemisphere tilted away from the Sun.

Detailed explanation-3: -More tilt means more severe seasons-warmer summers and colder winters; less tilt means less severe seasons-cooler summers and milder winters.