Which of the following is a mineral?
a. Sugar
b. Granite
c. Ice
d. Obsidian
e. Bronze
c. Ice
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Which must we do when preparing a solution of specific molarity?
A) Carefully weigh the solute, carefully weigh the solvent. B) Carefully weigh the solute, carefully measure the volume of solvent. C) Carefully weigh the solute, fill the volumetric flask to the mark. D) None of the above is the correct procedure.
The ocean zone that makes up less than 10% of the world's ocean area, yet contains 90% of all the marine species, is the ____.
A. abyssal zone B. bathyal zone C. benthic zone D. coastal zone E. littoral zone
Outwash sediments are stratified by wind deposition
Indicate whether this statement is true or false.
The number of people served by advanced wastewater treatment plants doubled between 1968 and the mid-1990s, but because the treatment plants _______________________, the quantity of waste emitted into the water after treatment ___________________ .
A. became so much more effective; decreased by about one-third B. became so much less effective; increased by about one-third C. remained ineffective; remained the same D. moderately improved; increased by 10%