Between the years 1955 and 2011, the total fertility rate in the world
a. increased from 2.8 to 6.5
b. decreased from 5.0 to 2.5
c. decreased from 2.5 to 1.6
d. increased from 1.6 to 2.5
e. increased from 2.5 to 2.8
B
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The nucleus of an atom consists of one or more _____________________ and in some cases, one or more neutrons.
Fill in the blank(s) with the appropriate word(s).
One or more of the following processes involves organic carbon; identify it (them): the precipitation of a calcite skeleton, the exchange of carbon between the oceans and the atmosphere, dissolution at the sea floor or oxidation during weathering?
What will be an ideal response?
Match the volcano type with the correct choice. Choices will be used more than once
A) Composite volcano B) Shield volcano C) Cinder cone 9) Mauna Loa 10) Parícutin 11) Iceland 12) Fujiyama 13) Mount Etna 14) S P Crater
The cP air-mass in North America originates in:
A) Siberia. B) the North Atlantic. C) Greenland. D) interior Alaska and Canada. E) the Arctic basin.