UNIVERSE
SOLAR SYSTEM FORMATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It formed by accretion
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It is a capture asteriod
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It is similar in composition to Earth
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It is almost as old as Earth
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Detailed explanation-1: -Billions of years ago, a version of our Earth that looks very different than the one we live on today was hit by an object about the size of Mars, called Theia – and out of that collision the Moon was formed.
Detailed explanation-2: -The IAU definition also excludes moons from being planets.
Detailed explanation-3: -Answer 1: A moon is a body in space that orbits another body in space such as a planet or an asteroid. Planets and asteroids are not considered moons because they orbit the sun. Moons are also so-called “natural satellites", meaning they are not man made.
Detailed explanation-4: -(C) Asteroids changes into comet when they come near to the sun. This option is not correct. Asteroids are small, rock type object that orbits around the sun, just like planets but they are not considered as planets because they are very small in comparison.
Detailed explanation-5: -Capture theory–The Moon was captured by the Earth like many of the moons of Jupiter. This theory failed because: A captured moon would follow an elliptical orbit. However, the Moon follows an almost circular orbit.