Question

Which of these statements is most likely correct about both asteroids and comets?
a. They are created from space debris.
b. They have the same number of satellites.
c. They do not consist of ice and dust.
d. They do not experience gravitational force.

Answer 1

Asteroids and comets can have any number of satellites.
Comets consist of ice and dust. Asteroids consist of rock (and metal, metal ores)
Everything experiences gravity

Answer 2

@broken_symmetry
what do u think the answer is, i think it is "A" but i thought only asteroids being hit caused debris?

Answer 3

It's not only that. The debris could be caused by any number of processes.

The elements that make up the debris ultimately originate in supernovae. I believe these elements typically get formed into rocks in chemical reactions that take place in newly formed planets, but this isn't my field so I'm not sure.

Stars, planets, asteroids, comets and other bodies form out of initially diffuse clouds of material called nebulae. The material attracts itself into bodies under its own gravity in a process called accretion. https://en.wikipedia.org/wiki/Accretion_%28astrophysics%29

Asteroids can form the debris left over from the collisions of other asteroids, planets with asteroids or even planets with other planets.

Answer 4

Sorry that last sentence was poorly worded:

Asteroids and comets can form out of the debris left over from the collisions of other asteroids, planets with asteroids or even planets with other planets.

Answer 5

@broken_symmetry Thank you! You breaking it down more, made so much more sense. ha! i think that, the way they word most of the questions make it hard to understand. thank you very much!
the last sentence was not a problem i knew what you ment.! haha

Answer 6

There's also the process of extreme tidal forces ripping apart small planets into debris, which is why many large planets have rings.