The first comprehensive theory of continental drift was propounded by _______.
a - Wallace
b - Darwin
c - Koppen
d - Wegener
e - Sagan
d - Wegener
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Standing waves are important in the physics of what kind of wave?
A) Seismic sea waves B) Capillary waves C) Seiche waves D) Progressive waves
An ethnic religion typically has less widespread distribution of its holy places because
A) they have not diffused globally. B) many of their holy places have been destroyed by urban growth. C) in large part their holy places derive from the physical characteristic of its hearth. D) in times of globalization they have been forced to abandon their holy places. E) their holy places are the sun, sky, and earth.
When N,N- is part of the IUPAC name of an amine which of the following is true?
A) The amine is a 1° amine. B) The amine is a 2° amine. C) The amine is a 3° amine. D) The amine has more than one N atom.
Permafrost is ________
A) A surface snow layer that does not melt in the summer B) A subsurface layer of soil and water that does not thaw C) An Arctic weather pattern that does not get above freezing D) A region where planting is not possible because of yearlong morning frost