GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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False
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True
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Either A or B
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None of the above
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Detailed explanation-1: -It is made of rocky materials that have melting points above about 600℃. So while Mercury is indeed very hot, it is not hot enough to melt. And certainly not hot enough to boil or turn into gas.
Detailed explanation-2: -While both are terrestrial in nature, Mercury is significantly smaller and less massive than Earth, though it has a similar density. Mercury’s composition is also much more metallic than that of Earth, and its 3:2 orbital resonance results in a single day being twice as long as a year.
Detailed explanation-3: -Mercury has an extremely thin atmosphere which is made up of atoms blasted off its surface by the Solar wind, a constant stream of particles coming from the outer layer of the Sun. Because Mercury is so hot, these atoms quickly escape into space.
Detailed explanation-4: -Mercury formed about 4.5 billion years ago when gravity pulled swirling gas and dust together to form this small planet nearest the Sun. Like its fellow terrestrial planets, Mercury has a central core, a rocky mantle, and a solid crust.