In the northern hemisphere, suppose you observe the upper-level winds blowing from the south. In which direction from you is the trough of low pressure?
A. west
B. east
C. north
D. south
Answer: A
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In the diagram below, which layer is able to flow rather than being brittle?
A) 1 because water helps lubricate it
B) 2 because the rocks are of a different composition than in the other layers
C) 1, 2, and 3 because it is not under as much pressure as 4
D) 4 because it is under so much more pressure than 1, 2, and 3
The acceptance of global energy change is difficult because fossil fuels power most of the world
economies. Indicate whether the statement is true or false.
The terms polluted and contaminated have different meanings when it comes to substances put in the environment by human activity. With respect to these substances, what does polluted mean?
A. concentration is high enough to cause harm to living organisms. B. concentration is above natural levels, but harmful only to humans. C. concentration is simply above the detection limit of modern instruments. D. concentration is below natural levels and unlikely to harm humans. E. concentration is above natural levels, but not harmful to living organisms.
A soil containing only an A horizon atop partially altered parent material is said to be ________
A) solum B) acidic C) series D) immature E) phreatic