Once thought to be signs form the heavens of future events, comets now are understood to be relatively simple astronomical phenomena. Comets are celestial bodies of small mass ___(11)___ mainly of gases.

What is a comet? aa small body of ice, rock, and dust that orbits the sun bany minor body that orbits the sun beyond the orbit of Neptune cthe trail of light seen from Earth as a meteoroid burns up in Earth's atmosphere dan irregularly shaped, pockmarked piece of debris that broke apart from an asteroid

Comets are large rocks that travel through space. Space is very cold, so comets are covered in ice and other frozen materials. When they move towards a sun, however, they are warmed and develope an impressive tail which you can see in a telescope. A comet's tail is made up of gas. Can you explain how this tail is formed? Be sure to name any changes of state which you think have occured.

how does a comet form?

Which one of the following is true about cometsGroup of answer choicesA comet is an icy, small Solar System bodyMost comets arenormally found in the outskirts of our solar systemComets have tail that points towards the SunComets have comparable size with planetsA and B

Over the past few centuries, comets have occasionally been observed in the sky. What is one difference between comets and the Moon? Select one:Comets have large orbits around the Sun, while the Moon orbits Earth.highlight_offComets collect debris as they travel in space, while the Moon gives off meteoroids.highlight_offThe Moon has a core of ice, while comet cores are solid rock.highlight_offThe Moon reflects light from the Sun, while comets generate their own light.highlight_off