The early Earth separated into different layers as a result of differentiation. What were the three basic layers of the interior of the early Earth?
What will be an ideal response?
Answer: Iron-rich core, primitive crust, and mantle
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Which of the following describes the vertical structure of a hurricane?
A. There is an upper-level inflow of air and a surface outflow of air. B. There is an upper-level inflow of air and a surface inflow of air. C. There is an upper-level outflow of air and a surface inflow of air. D. There is an upper-level outflow of air and a surface outflow of air.
What happens to wave energy and erosion when riprap or seawalls are installed?
a. ?Waves striking the riprap are reflected back against the incoming waves to lessen their overall effect. b. ?Wave height rises against the wall, and more erosion occurs at the base of the wall. c. ?Seawalls do not influence wave energy or erosion; they only create separation between the sea and structures. d. ?Waves lose their energy against riprap or seawalls, so erosion is prevented in that area. e. ?Waves pulverize the riprap and seawalls, creating sand that helps maintain the beach.
Which operation can remove boundaries between polygons that have the same value of a select attribute?
A. Dissolve B. Clip C. Merge
Explain how increased atmospheric carbon dioxide levels and warmer coastal waters resulting from global climate change may affect coral reefs
What will be an ideal response?