Glaciers are masses of ice that move that move slowly on land. Which of these features was most likely formed by a glacier? f. a wide valley
g. a deep ocean
h. a lava flow
j. a mountain range

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