Read this excerpt from A Black Hole is NOT a Hole.
Which fact is the author emphasizing in this excerpt?
A black hole is the same size as the star that it is
created from
When it comes to black holes, matter really matters.
After all, if it weren't for all the matter crunched into a
tiny space, an extreme gravity zone could never form.
But it's not just how much matter in how small a space
that makes a difference. How a star's matter collapses
also affects the black hole that forms.
O When a black hole is created is just as important as
how it is created.
O How a black hole is created is just as important as
how much matter it contains
An extreme gravity zone creates black holes in
spaces that are too tiny to imagine.