SSC
WORLD GEOGRAPHY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They receive the most direct rays from the sun.
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Their surfaces reflect the greatest amount of sunlight.
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The sun is directly over the equator at noon year-round.
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They receive equal amounts of daylight hours and night time hours.
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Detailed explanation-1: -Due to the spherical shape of the Earth, sunlight falls on different parts at different angles. Direct and focussed sun rays falls on the equator and hence, the regions here are hotter and warmer.
Detailed explanation-2: -When the sun’s rays strike Earth’s surface near the equator, the incoming solar radiation is more direct (nearly perpendicular or closer to a 90˚ angle). Therefore, the solar radiation is concentrated over a smaller surface area, causing warmer temperatures.
Detailed explanation-3: -Physical coupling with the atmosphere The ocean receives most of its heat along the equator, where incoming solar radiation is about double that received at the poles. Hence, sea surfaces are much warmer along the equator than at the poles.