Which of the following is true of carbonate salts and phosphate salts?
A) Most carbonate salts are soluble but most phosphate salts are insoluble.
B) Most phosphate salts are soluble but most carbonate salts are insoluble.
C) Most carbonate salts and most phosphate salts are soluble.
D) Most carbonate salts and most phosphate salts are insoluble.
D
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A country that has undergone a full demographic transition has
A) a lower birth rate and a higher death rate. B) a higher birth rate and a lower death rate. C) a higher birth rate and a lower death rate, and it is about to undergo industrialization. D) a lower birth rate, a lower death rate, and it has undergone significant economic growth.
What manufacturing region in North America produces electronics and processed foods, and is often called "Silicon Valley"?
A) Gulf Coast, from southeastern Texas to Alabama B) Los Angeles and San Diego C) San Francisco Bay D) Southeastern, from Virginia through Alabama E) Pacific Northwest
Conditions that change in an experiment or model are called variables
Indicate whether the statement is true or false
What orientation of stresses is the simplest explanation for the structure shown in this figure?
A. shearing in a horizontal direction B. equal amounts of confining pressure C. shearing in a vertical direction D. tension from upper left to lower right