UNIVERSE
COMETS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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by telling about a famous one
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by explaining how far away it is
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by describing how fast it moves
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by describing it as a dirty snowball
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Detailed explanation-1: -Comets are several miles in diameter, composed of rock, ice and other organic compounds, making them “dirty snowballs” in space, according to NASA’s near earth object program.
Detailed explanation-2: -These are the comets. Some astronomers have referred to comets as “dirty snowballs” or “icy mud balls” because they are composed mainly of ice with dust and fragments of rock. The ice can be both water ice and frozen gases.
Detailed explanation-3: -When a comet’s orbit brings it close to the Sun, it heats up and spews dust and gases into a giant glowing head larger than most planets.
Detailed explanation-4: -Scientists sometimes call comets dirty snowballs or snowy dirtballs, depending on whether they contain more ice material or rocky debris according to NASA. Related: How to view and photograph comets.