A mutation is a genetic error in the creation of DNA. My science teacher compared it to a copier that made a mistake; the DNA is copied from others, but the "copier" messed up, making part of a helix different. Mutations can be genotypes or phenotypes.
It would be c.
Gravity force on earth: 9.8N or m/s estimed to 10N
818/10= 81.8 kg on earth
form the equation:
81.8×x=5320
If we solve this equation we will get an answer near 63.7 m/s.
Chemical reactions occur when chemical bonds between atoms are formed or broken. If this is what you mean because the question is really confusing sorry :(
I believe it would be D, Species Diversity