UNIVERSE
COMETS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Asteroids
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Comets
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Meteroids
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None of the above
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Detailed explanation-1: -The nucleus of a comet is composed of an amalgamation of rock, dust, water, ice and many frozen gases.
Detailed explanation-2: -Every comet is made of the same basic ingredients–ice and dust. However, comets vary in how much of the ice is water ice and how much is ice made of other substances, including methane, ammonia, carbon dioxide, carbon monoxide, sulfur, and hydrogen sulfide.
Detailed explanation-3: -Comets are also known as shooting stars.
Detailed explanation-4: -Asteroids are smaller than a planet, but they are larger than the pebble-size objects we call meteoroids. Comets are small icy dirtballs that orbit the Sun; comets are made of ice and dust while asteroids are made of rock).
Detailed explanation-5: -Comets are generally classified into three orbital types according to their periods: namely, the long-period comets with p > 200 years; the intermediate-period comets with P between 20 and 200 years; and finally, the short-period comets with P < 20 years.