In this part of the Periodic Table, what type of elements are in the group that includes elements Cu, Ag, and Au?
A. silicates
B. noble gases
C. metals
D. nonmetals
Answer: C
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Which of the following is not true of soft water?
A) It requires special filters and chemicals to produce. B) It may clog pipes. C) It may add toxic metals to drinking water. D) It may corrode pipes.
Which of the following is NOT a very long-lived, radioactive isotope? K-40 C-14 Rb-87 U-238
What will be an ideal response?
True or False: The rocks above the fault are called the hanging wall
Indicate whether this statement is true or false.
The mixing ratio is the most important of the moisture indices because:
A) it is the ratio of water vapor to a mass of dry air (as opposed to all air). B) it is the ratio of water content to capacity. C) it is the mass of water vapor relative to the mass of all other atmospheric gasses. D) it is the ratio of water vapor to the volume of air involved.