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Answer:
1. Comets are frozen leftovers from the formation of the solar system composed of dust, rock and ices. They range from a few miles to tens of miles wide, but as they orbit closer to the sun, they heat up and spew gases and dust into a glowing head that can be larger than a planet.
2. Oort Cloud
Comets are believed to have two sources. Long-period comets (those which take more than 200 years to complete an orbit around the Sun) originate from the Oort Cloud. Short-period comets (those which take less than 200 years to complete an orbit around the Sun) originate from the Kuiper Belt.
3. Comet tails get longer and more impressive as the comet gets closer to our Sun. As the comet approaches our Sun, it gets hotter and material is released more rapidly, producing a larger tail. Scientists estimate that a comet loses between 0.1 and 1 percent of its mass each time it orbits our Sun
4. A meteor shower occurs when the Earth passes through the trail of debris left by a comet or asteroid. 2. Meteors are bits of rocks and ice ejected from comets as they move in their orbits about the sun. ... Approximately 30 meteor showers occur each year that are visible to observers on Earth.
Explanation:
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