Question

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What are comets ?​

Answer 1

Explanation:

Comets are cosmic snowballs of frozen gases, rock, and dust that orbit the Sun. When frozen, they are the size of a small town. 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.

Answer 2

Answer:

Comets are very small celestial objects made of gas and dust which revolve around the Sun in highly elliptical orbits and become visible only when they come close to the Sun. As a comet approaches the Sun, it develops a long, glowing tail and becomes visible to us .