Briefly describe what happens when divergent plate boundaries form within a continent. What will be an ideal response?
High heat flow elevates the continent and a rift valley forms, with normal faults and a central valley
called a graben. Magma is intruded into fractures. As the plates diverge, basalt erupts in the rift,
creating new ocean crust. Ultimately, as the plates continue to diverge, a new ocean basin forms.
You might also like to view...
Low, layered clouds associated with gray, overcast skies are called:
a. cirrus. b. stratus. c. lenticular. d. cumulonimbus.
________ sediments are deposited or precipitated as a result of the actions of organisms.
A. Pyroclastic B. Siliciclastic C. Calciclastic D. Hyaloclastic E. Biochemical
Which of the following is NOT true regarding interregional migration?
A) Canadian interregional movement shifted west to east given its large Pacific Rim community. B) Soviet Russia's interregional migration was largely orchestrated by government policies to develop economic centers near resource rich areas. C) Brazilian interior development was orchestrated by the planned city development of Brasilia and flexible land use policies in the Amazon. D) China's rural to urban movement, up until recently, had been restricted through government policies. E) Russia's current interregional migration patterns are representative of less government mandated relocation and economic policies.
Approximately what percentage of plant starch is amylose?
A) 10 to 15% B) 20 to 25% C) 75 to 80% D) 85 to 90%