E-waste can be recycled to extract ____.
A. gold, rare earths, and other valuable metals
B. carbon compounds
C. enriched uranium
D. organic solids
E. personal identification information
Answer: A
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Given that the total number of atoms on our planet remains fairly constant, how is it ever possible to deplete a natural resource such as a metal?
A. The atoms don't leave our planet, which is why naturally occurring materials never really reach the point of depletion. B. The problem is with the expense of collecting metal atoms that are uniformly dispersed. C. The problem remains that not everyone recycles as they should. D. Recycling only forestalls the inevitable depletion of metal resources.
Iceland lies on a tectonic boundary and has many active volcanoes
Indicate whether the statement is true or false
When lateral shear causes horizontal movement along a fault plane, the resulting fault is called a
A) lateral fault. B) thrust fault. C) normal fault. D) strike-slip fault.
How many aldehydes have the molecular formula C4H8O?
A) 1 B) 2 C) 3 D) 4