Question

Which is the correct order for the steps in the formation of a black hole?%0D%0A%0D%0A(1 point)%0D%0AResponses%0D%0A%0D%0AA chemical reaction takes place in a star, stars emit radiation converting millions of tons of hydrogen into helium, the star uses all its hydrogen, helium burns off, heavier elements are created, and the star collapses in on itself.%0D%0A%0D%0AA chemical reaction takes place in a star, stars emit radiation converting millions of tons of hydrogen into helium, the star uses all its hydrogen, helium burns off, heavier elements are created, and the star collapses in on itself.%0D%0A%0D%0AStars emit radiation converting millions of tons of hydrogen into helium, helium burns off, heavier elements are created, the star collapses in on itself, chemical reaction takes place in a star, the star uses all its hydrogen.%0D%0A%0D%0AStars emit radiation converting millions of tons of hydrogen into helium, helium burns off, heavier elements are created, the star collapses in on itself, chemical reaction takes place in a star

Answer 1

The first option is correct.

Sequence: A chemical reaction (nuclear fusion) begins in the star → the star fuses hydrogen into helium (releasing radiation) → the star uses up its hydrogen → it burns helium and fuses successively heavier elements → after making heavy elements (iron core), the core collapses and can form a black hole (if the star is massive enough).