Quartzite generally forms from the metamorphism of pre-existing ___.
a) limestone
b) dolostone
c) quartz sandstone
d) quartz monzonite
e) granite
Answer: c) quartz sandstone
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If you typically consume large amounts of processed foods, and certain wines, which category of chemical hazard is introduced into your system?
a. mutagen, because of the nitrites b. carcinogen, because of the nitrites c. teratogen, because of the nitrites d. mutagen, because of the phosphoric acid e. carcinogen, because of the high fat content
High levels of ____ could indicate life on other planets
a. free nitrogen b. carbon dioxide c. free oxygen d. bound nitrogen
What types of clouds help produce halo when the sun shines through them?
A) cumulonimbus B) cirrostratus C) altocumulus D) stratus
Electricity
A. can be converted to a fossil fuel. B. is difficult to transport. C. is a valuable form of energy since it can be used for many purposes. D. is primarily produced from wind, solar, and other renewable technologies.