UTC is based on
A) Big Ben
B) very precise pendulum motion in Greenwich, U.K.
C) the pulse rate of pulsar stars.
D) average time calculations from atomic clocks collected worldwide
D
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Identify three ecological characteristics of the blue whale that make it vulnerable to extinction.
What will be an ideal response?
Scan the Discharge (column 2) and Gage at Peak (column 3) data columns. As gage height at peak (stream depth) gets higher, what usually happens to the discharge?
What will be an ideal response?
Many predator-prey relationships do not result in the complete elimination of the prey because
A) predators cannot catch all of the healthy adults and will shift to other prey if one species is scarce. B) the predator population is limited by the availability of territorial space. C) a single species of prey does not provide enough nutrition. D) the prey populations are always far below carrying capacity.
Match the environment of deposition with the appropriate category. Answers will be used more than once
A) Marine environment B) Continental environment C) Transitional environment 1) Alluvial fan 2) Deep marine 3) Mudflat 4) Swamp 5) Stream 6) Beach 7) Lakes 8) Reef