Which of the following are associated with turbidity currents?
A. submarine canyons
B. graded beds
C. a dense slurry of water and sediment that moves downhill
D. submarine fans
E. All of these choices are correct.
Answer: E
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Figure 11.2 shows surface wind flow in the Northern and Southern Hemispheres. Place an H or an L in the center of each example to indicate what type of pressure is shown and write the name of the correct hemisphere below each of the examples. Pick one arrow from each example and draw your own arrows to indicate the pressure-gradient force in red, Coriolis force in blue, and friction in brown for that figure, or colors as indicated by your professor, as shown in Figure 11.2a. Label the pressuregradient force arrow with PGF, the Coriolis force arrow with CF, and the friction with F.
What will be an ideal response?
The current ice age
A) began around 38-55MYA. B) began during the Pleistocene. C) came about rapidly. D) had a uniform drop in temperature.
Explain how Eratosthenes used the rays of the Sun to estimate the circumference of Earth and to demonstrate that the planet was spherical
An average value for the temperature of deep-ocean water is (pick the best choice) ________.
A. -4.5°C B. 12°C C. 17°C D. 8°C E. 2°C