UNIVERSE
ASTEROIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Comet
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Meteor
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Asteroid
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None of the above
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Detailed explanation-1: -Meteorites are rocks, but they are not like Earth rocks. Most are far older, and they provide some of the only samples we have of other worlds – other planets, asteroids and possibly comets – in our solar system. Some meteorites even contain tiny particles that formed around other stars that existed before our Sun.
Detailed explanation-2: -Asteroids are solid, rocky and irregular bodies that are the rocky remnants of the protoplanetary disk of dust and gas that formed around our young sun over 4.5 billion years ago. Much of the disk coalesced to form the planets, but some of the debris remained.
Detailed explanation-3: -The C-type (chondrite) asteroids are most common. They probably consist of clay and silicate rocks, and are dark in appearance. They are among the most ancient objects in the solar system. The S-types ("stony") are made up of silicate materials and nickel-iron.
Detailed explanation-4: -Most asteroids are made of different kinds of rocks, but some have clays or metals, such as nickel and iron.