A solution has a concentration of 15 ppm. Which of the following is another way to describe the concentration of this solution?
A) 0.015 ppb
B) 0.15 ppb
C) 1500 ppb
D) 15000 ppb
D
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The ________ is a hotter, weaker region in the mantle that lies below the lithosphere and responds to forces by flowing
A) asthenosphere B) outer core C) inner core D) atmosphere E) crust
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A. The quantity stays the same because the price of a resource does not change the availability of that resource. B. The quantity increases because new natural gas is being created. C. The quantity decreases because it is too expensive and people do not buy it. D. The quantity increases because it is worthwhile to drill into lower quality fields. E. The quantity decreases because it is too expensive to produce.
The ____________________ of an earthquake on the Richter Scale is determined by measuring the
____________________ of the largest recorded seismic wave. Fill in the blank(s) with the appropriate word(s).