What is the direction of Ekman transport in the Northern Hemisphere?
What will be an ideal response?
Answer: To the right of the wind direction. With no outside forces, water moves in the direction of the wind. But the Coriolis force deflects wind and water currents—to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. So, in the Northern Hemisphere Ekman transport is to the right of the wind direction.
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The adoption of very similar streamlined body shapes by both sharks and dolphins provides evidence for
A) cross-breeding B) convergent evolution C) genetic mutations D) life originating in the oceans
In representing a vector quantity:
a. the length of the arrow represents the direction of the vector and the direction of the arrow represents the magnitude of the vector. b. the direction of the arrow represents the magnitude of the vector. c. the length of the arrow represents the direction of the vector. d. the width of the line used for the arrow represents the magnitude of the vector and the direction of the arrow represents the direction of the vector. e. the length of the arrow represents the magnitude of the vector and the direction of the arrow represents the direction of the vector.
That the Moon has no magnetic field implies that
a. the Moon is spinning too slowly to produce a magnetic field. b. the interior of the Moon is too hot to produce a magnetic field. c. the crust of the Moon is so thick that the magnetic field cannot get out of the interior. d. the Moon's core contains little if any molten iron. e. the Moon is moving further from Earth.
Helium, He, is a nonmetallic gas and the second element in the periodic table. Rather than being placed adjacent to hydrogen, H, however, helium is placed on the far right of the table because
A) hydrogen and helium repel one another. B) the sizes of their atoms are vastly different. C) they come from different sources. D) helium is most similar to other group 18 elements.