Sagot :
Explanation:
We have stardust in us as old as the universe—and some that may have ... If a star is heavy enough, it will explode in a supernova. ... Cells die and rebuild all the time.
Explanation:
We have stardust in us as old as the universe—and some that may have ... If a star is heavy enough, it will explode in a supernova. ... Cells die and rebuild all the time.