What mineral test is shown in this photograph? 
A. effervescence
B. streak
C. scratch test
D. specific gravity
E. magnetism
Answer: A
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The weather in the United States is dominated by air masses that form over the Arctic Ocean.
Answer the following statement true (T) or false (F)
The Sun is a star in the ________ galaxy
A) Orion B) Milky Way C) Proxima Centauri D) Alpha Centauri E) Betelgeuse
According to the lock-and-key model, in order for a drug to bind it must have the proper
A. conformation. B. configuration. C. functional groups. D. all of the above
If two air parcels at sea level have the same size but different temperatures, the colder parcel of air will have
a. a higher pressure but the same density as the warm parcel. b. the same pressure but lower density than the warm parcel. c. the same pressure but higher density than the warm parcel. d. a lower pressure but the same density as the warm parcel. e. the same pressure and the same pressure as the warm parcel.