What fraction of North America was covered by ice at the peak of the last ice age?
A) 1/4
B) 1/3
C) 2/3
D) 5/6
Answer: C
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Minerals have an ordered internal atomic arrangement. What does this mean?
A. Atoms in a mineral must be in the shape of either a cube, a tetrahedron, or an octahedron. B. Atoms in a mineral are arranged in a random fashion. C. Atoms in a mineral are arranged in an ordered geometric pattern. D. Atoms in a mineral must all be of the same type of element.
Through 2014 there has been U.S. intervention in the civil war in Syria, in defense of rebel forces
Indicate whether the statement is true or false
Carbon sequestration ________
A) involves capturing carbon emissions and then releasing them into the stratosphere B) converts carbon from carbon dioxide emissions into smaller elements that do not contribute to global climate change C) has proved to be more dangerous to the environment than releasing carbon emissions D) involves converting carbon dioxide gas to a liquid form for storage in the ocean or underground E) has been used by U.S. electrical plants since 1955, converting carbon dioxide to limestone
What will likely happen to temperatures in Europe if thermohaline circulation in the Atlantic Ocean stops?
A. Temperatures will increase B. Temperatures will not change C. Temperatures will decrease