Which of the following is NOT a rock forming mineral or mineral group?
A. Clay Mineral Group
B. Quartz
C. Feldspar Group
D. Amorphosite
E. Calcite
Answer: D
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Off-road vehicles should only use existing roads to minimize their environmental impact.
Answer the following statement true (T) or false (F)
In order to use a radioactive-decay scheme to calculate the age of a mineral all of the following conditions must be met except
A) the half-life must be known. B) no daughter isotope present prior to the start of parental decay or the amount of daughter can be determined. C) no parent or daughter isotopes can be gained or lost from the mineral once decay starts. D) only one radioactive isotope can exist in the rock so that cross-decay doesn't occur.
Because of limitations in existing technology, which layer of the atmosphere do we know the LEAST about?
A) Thermosphere B) Mesosphere C) Stratosphere D) Troposphere
Map Must contain:
What will be an ideal response?