A situation where friction would be desirable is rubbing your hands together to make them warm in the winter time.
Answer:
D. Ligase
Explanation:
Ligase is an enzyme that can catalyze the fusion of two large molecules through the formation of a new chemical bond, which is usually accompanied by the hydrolysis of a small end chemical group.
Ligases play an important role in linking DNA breaks during excision repair, DNA damage, or spontaneous lesions such as basal sites or oxidized bases.
The process is photosynthesis
C) Hydrogen of water is separated from oxygen. DOES NOT OCCUR!
