SSC MTS EXAM

SSC

PHYSICAL GEOGRAPHY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What causes the seasons to change on Earth?
A
The North & South Poles
B
Earth’s distance from the Sun
C
The Winds Currents
D
The Earth’s tilt as it revolves around the sun
Explanation: 

Detailed explanation-1: -The earth’s spin axis is tilted with respect to its orbital plane. This is what causes the seasons. When the earth’s axis points towards the sun, it is summer for that hemisphere. When the earth’s axis points away, winter can be expected.

Detailed explanation-2: -The tilt of the Earth’s axis is the most important reason why seasons occur. The Earth’s movement around the Sun causes seasons. The Earth is always tilted to one side as it orbits the Sun. So, when the North pole tilts towards Sun, it’s summer in the Northern hemisphere and winter in the Southern hemisphere.

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.

Detailed explanation-4: -We have seasons because the sun angle varies over the course of the year, and it varies because the Earth’s plane of rotation is tilted by about 23.5 degrees from the plane of its orbit around the sun.

There is 1 question to complete.