Most cratons date to the
A) Precambrian eon.
B) Paleozoic era.
C) Devonian period.
D) Paleocene epoch.
A
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Is a cold front or warm front shown in Map B?
Two hypothetical weather maps in the Northern Hemisphere are shown here. Using the appropriate symbols, draw in the position of the front on each map (one map shows a cold front, and the other a warm front). Top of each map is north.
What will be an ideal response?
How fast does a 6-kg ball move if its momentum is 72 kg?m/s?
A. 4 m/s. B. 48 m/s. C. 12 m/s. D. 3 m/s.
Which of the following is not a commonly proposed strategy to address issues with food supply?
A) expanding agricultural land B) increasing agricultural productivity C) increasing employment in fishing D) improving food sources E) expanding exports
The activation of phosphorylase b involves which of the following?
A) conversion of one form of chemical energy to another B) conversion of chemical energy to electrical energy C) conversion of chemical energy to heat energy D) conversion of one form of chemical energy to mechanical energy