Question

Which model best describes how gravity causes star formation?
O A. A cup of water is dumped on the ground, where it forms a small
pool.
OB. Two mugs crash into each other and break into many small
pieces.
O C. A long spool of thread is unwound and then wound back up.
O D. A snowball grows as more snow sticks to it.​

Answer 1

Answer:

C. A long spool of thread is unwound and then wound back up.