GK
SOLAR SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the north pole of Earth will always be pointed away from the Sun, making it colder.
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the angle of sunlight varies on different parts of Earth at different times.
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the surface area of Earth is not constant at all parts of its orbit.
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the amount of time it takes for the light to reach Earth changes a little throughout the year.
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Detailed explanation-1: -Earth’s tilted axis causes the seasons. Throughout the year, different parts of Earth receive the Sun’s most direct rays. So, when the North Pole tilts toward the Sun, it’s summer in the Northern Hemisphere. And when the South Pole tilts toward the Sun, it’s winter in the Northern Hemisphere.
Detailed explanation-2: -The hemisphere tilted toward the sun also has more hours of daylight than the hemisphere that is tilted away from the sun. The combination of more direct rays of sunlight and more hours of daylight causes the hemisphere tilted toward the sun to receive more solar radiation and to have warmer temperatures.
Detailed explanation-3: -The tilt of the Earth’s axis is important, in that it governs the warming strength of the sun’s energy. The tilt of the surface of the Earth causes light to be spread across a greater area of land, called the cosine projection effect.
Detailed explanation-4: -Earth rotates on its axis; this causes us to experience day and night. But Earth’s axis is tilted 23.5 degrees (the angle is measured between Earth’s equatorial plane and the plane in which it orbits our Sun).