use-and-Effect Structure in A Black Hole Is NOT a Hole
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which sentence from "Black Hole Beginnings" is a cause underlined?
○ More matter mounts up on the outside, increasing the pressure on the inside
O As the star material gathers, its inward pressure grows.
The gases blast out as the star goes supernova.
It expands like hot air inside a balloon and pushes outward from the center.