Question

. When stars age, they begin to fuse helium creating larger and larger elements…all the way up to…
*
1 point
lithium
boron
iron

Answer 1

When stars age and run out of helium, they can fuse heavier elements all the way up to iron. Iron is the end point of fusion for most massive stars because fusing iron does not release energy; rather, it requires energy. Therefore, the correct answer is:

**iron**