A pulverized mineral (usually on a piece of white unglazed porcelain) gives a color called its ________, that is usually more reliable than the color of the specimen itself.
A. streak
B. powder
C. chroma
D. dust
E. smear
Answer: A
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The Japan Marine Science and Technology Center (JAMSTAC) is acclaimed for launching both the
deepest-diving manned and unmanned submersibles to date. Indicate whether the statement is true or false.
Pollution occurs if
A) there is more waste than a resource can tolerate. B) there is less waste than environmental capacity. C) recycling occurs. D) waste is thrown away. E) a regulation is passed.
Water bodies where rivers flow into the oceans, mixing fresh water with saltwater, are called ________
A) salt marshes B) littoral ecosystems C) mangroves D) upwellings E) estuaries
The U.S. has the largest economy in the world, and Japan has the third largest. Which country has the second-largest economy in the world?
A) Great Britain B) Brazil C) China D) Russia E) India