NEED ANSWER ASAP!! 8) A has a nucleus, a corona, and a tail.
meteors
comet
stars
planet
asteroid

I'm pretty sure it's a comet!

Explanation:

A comet's nucleus is like a snowball made of ice. As the comet nears the Sun, the ice starts to melt off, along with particles of dust. These particles and gases make a cloud around the nucleus, called a coma. A comet's nucleus, or heart, is the solid chunk of something in the center of its fuzzy coma.

Most comets have two tails. ... Because the comet dust particles are so small, they are pushed away from the Sun into a long tail. Another tail is made of electrically charged molecules of gas (called ions). Very rarely a comet will have a third tail made of sodium, which we usually don't see with our unaided eyes.

Very sorry if this is incorrect, I hope this helps!

~Kweenie~

ocean expansion, global warming is melting icebergs and causing water levels to rise.

he is very short, and he can only reach halfway up on the elevator buttons. but on a rainy day, he has his umbrella with him, and he uses it to poke the button at the top.