SSC
WORLD GEOGRAPHY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What factors naturally and predictably affect Earth’s cycles of cooling and warming?
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Increased cloud cover
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Fewer forests
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Greenhouse gas emissions
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Factors such as solar flares and volcanic activity
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Explanation:
Detailed explanation-1: -Major glacial (cold) and interglacial (warm) periods are initiated by changes in the Earth’s orbit around the Sun, called Milankovitch cycles. These cycles have occurred at different intensities on multi-millennial time scales (10, 000 – 100, 000 year periods).
Detailed explanation-2: -Because the sunspots are suppressing heat, the heat flows to surrounding areas causing these regions to be brighter than normal, radiating more heat. While more sunspots may contribute to warmer global climate, less sunspots appear to be associated with a cooler global climate.
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