Which of the following lists the correct requirements for a black hole to form?

a. the star must be 10 to 28 times larger than earth’s sun, and a supernova explosion must not have occurred.

b. the star must be 29 times larger than earth’s sun, and a supernova explosion must not have occurred.

c. the star must be 10 to 28 times larger than earth’s sun, and a supernova explosion must have occurred.

d. the star must be 29 times larger than earth’s sun, and a supernova explosion must have occurred.

The correct requirement for a black hole to form is:

C. The star must be 10 to 28 times larger than Earth’s sun, and a supernova explosion must have occurred.

Explanation: The least star that is larger than the sun is 10 times larger and a supernova explosion would have happen before a black hole to form.

The star must be 10 to 28 times larger than Earth’s sun, and a supernova explosion must have occurred.

Option: (A)

in 1948, swiss engineer/amateur mountaineer george de mestral went hiking in the woods with his dog. when they arrived back home, george found burrs stuck to his dog’s fur. this inspired him to create velcro.

explanation:

because there are alot of mountains