Biotite has which of the following types of cleavage?
A) cleavage in one direction
B) two directions at 90° angles
C) three directions at 90° angles
D) cleavage in four directions
Answer: A
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We can say that the United States has _____________freshwater scarcity stress
a. No b. very little or minimal c. Average d. Spotty e. Widespread
Which of the following is a basic structural component of the most common mineral group?
Which of the following is a major anthropogenic source of volatile organic compounds (VOCs)?
A) Coal-fired electrical generating plants B) Agricultural fertilizers C) Incompletely combusted fossil fuels from vehicle exhaust D) Nuclear power plants
The main reason for the lag in monthly mean temperatures in New York City and Miami after a solstice is
A) the amount of heat put out by human activities in the cities. B) insolation does not change for several weeks. C) the ability of vegetation to store heat. D) the ability of the Earth's oceans to gain or release heat. E) none of the above