The answer is A. I did the assignment
Answer:
in ps1, reaction centre is p700
in ps2, reaction centre is p680
As the star runs out of nuclear fuel, some of its mass flows into its core. Eventually, the core is so heavy that it cannot withstand its own gravitational force. The core collapses, which results in the giant explosion of a supernova. The sun is a single star, but it does not have enough mass to become a supernova.
S Wave Is Really In A Shape Of An S
1. Small Intestines
2.Vitamins
Sorry i don’t know the others
