What is needed to calculate the speed and direction of tidal current while at sea?
A) The shape of the ocean basin below
B) The magnitude of gravitational forces and inertia
C) The position of the amphidromic point
D) All of these choices
D
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Which of the following molecules is polar?
A. a B. b C. c D. All are polar. E. Only a and c are polar.
Large impact craters and large, domal features (probably representing viscous lava flows) have been imaged on the surface of Venus
Indicate whether the statement is true or false
Metallic ores are created at diverging plate boundaries
A. in lava flows B. in sedimentary deposits C. through metamorphism D. through hydrothermal processes
Beach erosion on Great Lakes shorelines is exacerbated by
A) periodic high lake levels B) damming of rivers C) construction of expensive homes on lake bluffs D) removal of foredunes in the barrier island systems