The following image describes what type of change?
A. a physical change
B. a chemical change
C. no change
D. an elemental change
E. a change in state
Answer: B
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As with an inclined plane, a hydraulic press can increase energy.
A. Sometimes true. B. Always true. C. Always false. D. Sometimes false.
Niagara Falls were formed _______.
a - during Precambrian time approximately a billion years ago b - so long ago that the river's knickpoint is now gone c - after a series of spectacular earthquakes which are still helping the falls evolve d - by humans as a result of the damming of the St. Lawrence river e - after the retreat of the Pleistocene ice sheets a few thousand years ago
The terms typhoon and cyclone refer to the initial weaker stages in the development of a hurricane
Indicate whether the statement is true or false
Oxygen-isotope analysis is used on all of the following sources of proxy data EXCEPT:
A) sea floor sediments. B) glacial ice. C) coral reefs. D) tree rings.