Why are boulders not a mineral?
A) They are not solid.
B) They do not have an orderly crystalline structure.
C) They do not have a well-defined chemical composition.
D) They are not naturally occurring.
E) They are organic.
C
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The temperature below which magnetic material can retain a permanent magnetization is called the ________.
a. Darcy temperature b. Vine temperature c. Bullard point d. Curie point
Ocean basins are formed at ____________ boundaries. Fill in the blank(s) with the appropriate word(s)
Between a river and its floodplain, you might find ________
A) natural levees B) deltas C) distributaries D) meanders
What is the relationship between the nitrate ion and the nitrite ion?
A) The nitrate ion has one less oxygen atom than does the nitrite ion and both have the same charge. B) The nitrate ion has one more oxygen atom than does the nitrite ion and both have the same charge. C) In addition to having one less oxygen atom than nitrite, nitrate also has a larger negative charge. D) In addition to having one more oxygen atom than nitrite, nitrate also has a larger negative charge.