How does a comet’s tail form? 20 points pleas

Here is your answer!

The streams of dust and gas thus released form a huge, extremely tenuous atmosphere around the comet called the coma, and the force exerted on the coma by the Sun's radiation pressure and solar wind cause an enormous tail to form, which points away from the Sun.

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You know how the first one if filled up like the objects do the same but with the other categories