GK
SOLAR SYSTEM
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Earth
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Mercury
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Venus
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Neptune
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Detailed explanation-1: -Venus’ thick atmosphere traps heat creating a runaway greenhouse effect – making it the hottest planet in our solar system with surface temperatures hot enough to melt lead. The greenhouse effect makes Venus roughly 700°F (390°C) hotter than it would be without a greenhouse effect.
Detailed explanation-2: -Despite being farther from the Sun than Mercury, Venus is hotter than Mercury because its carbon dioxide and sulfuric acid-filled atmosphere causes a greenhouse effect, which traps heat, according to the National Aeronautics and Space Administration.
Detailed explanation-3: -For a really strong greenhouse effect, we should look at Venus. Venus is similar to Earth in terms of size and mass, but its surface temperature is about 460 degrees Celsius. This is hot enough to melt lead! The Venusian atmosphere is mainly made up of carbon dioxide, a greenhouse gas.
Detailed explanation-4: -Earth’s greenhouse gas atmosphere has an average of 78.9% absorption efficiency of terrestrial radiation (f = 0.789), while we assume Venus’ atmosphere has a near 100% absorption efficiency (f = 1) due to its denser, CO2-rich atmosphere.