It's B because when the surface moves the wind forces
I am generally confused as to of what you are asking. Can you post something so i can see what you need? I just am confused.
It occurs during Anaphase II, Telophase II, and Cytokinesis, when the sister chromatids separate so that there is 1 allele per gamete.
I think it’s called Diffusion
A dam is a structure built across a stream or river to hold water back. Dams can be used to store water, control flooding, and generate electricity.