Why do you think the location surrounding the pacific ocean is known as the ring of fire

What is the first step in a life cycle of a plant reproduce sexually

What causes darkening of the skin as melanin production increases

Sarah and john are having a discussion on genetic diversity. sarah believes that it happen over a long period of time. john it happens immediately. who is correct? a. sarah is correct because genetic diversity occurs over a long period of time. b. john is correct because genetic diversity occurs immediately. c. both are correct because genetic variation can occur or long period of time. d. neither are correct because genetic diversity occurs over any period of time