If you are a diver and a wave passed over you with a wavelength of 50 meters, what is the deepest depth you can
descend to still be able to notice the wave?
a. 5 meters
b. 10 meters
c. 15 meters
d. 25 meters
e. 100 meters
d
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The reintroduction of wolves into the Yellowstone ecosystem has been considered a success because
A. the wolves are thriving. B. local ranchers fear that wolves will attach cattle. C. ecotourism has decreased. D. biodiversity of the ecosystem has been re-established and sustained. E. global warming has ceased.
What are disappearing streams? What will be an ideal response?
Most of the earth's deserts are located in the:
A) boundary between liquid and frozen oceans. B) tradewind belt. C) doldrum belt. D) subsidence areas of subtropical highs. E) areas along the polar front.
Which of the following proteins has an extended helix secondary structure?
A) collagen B) keratin C) silk D) none of these