Which of the following is NOT a mineral?
A. crystals grown in a laboratory
B. liquid water
C. piece of wood
D. volcanic glass
E. All of these choices are correct.
Answer: E
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What was the name given to the most recent episode of large-scale deformation in the Cordillera, and
when did it begin? What will be an ideal response?
For the reaction A + B ? 2 C, which of the following statements is true?
A) B is consumed at the same rate that A is consumed. B) C is produced at the same rate A is consumed. C) both a and b D) neither a nor b
Humans have dramatically altered the rate of nitrogen fixation into forms usable by autotrophs by ________
A) burning of fossil fuels to meet our energy needs B) using antibiotics to reduce the numbers of denitrifying bacteria C) selectively removing leguminous plants D) producing synthetic fertilizers and applying them to crops, lawns, and parks E) increasing the erosion of farmlands through poor agricultural practices
Airline routes are sometimes changed as a result of solar storms
Indicate whether the statement is true or false