PLEASE HELP ME ITS DUE TODAY PLEASE YOU DONT HAVE TO AWNSER THEM ALL

Biology

1 answer:

dybincka [34]3 years ago

7 0

Answer:

1 = A

2 = B

3 = B

Explanation:

1) Black holes occur when really big stars collapse on themselves. And, in order to get big, the star has to be an old one.

2) A black hole is something huge that swallows up everything, while a protostar is just the very beginning of a star.

3) Scientist can't truly know for sure, but they can infer about them due to the effects of the surrounding areas.

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