With respect to minerals, which of the following is true?
A) All minerals have been discovered.
B) More than 500,000 minerals exist.
C) Mineral is a synonym for rock.
D) All minerals crystals are too small to be seen.
E) Fewer than 20 minerals make up 95% of the crust.
Answer: E
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This figure has rock units and geologic features that are assigned letters that are not in any particular order. From the geologic relations, what is the oldest unit or feature of those listed below?
A. dike (unit D) B. old river channels (feature R) C. fault (feature F) D. lava flow (unit L) E. the canyon (feature N)
As a group of places, where are thunderstorms most common?
A) Over oceans B) Over high mountains C) Over high latitudes D) Over tropical latitudes E) Equally over any latitude
The region (or zone) between the breaking waves and the shore is the surf zone
Indicate whether the statement is true or false
A prediction of "partly cloudy" is an example of
A) a quantitative forecast. B) a qualitative forecast. C) a probability forecast. D) an analog forecast.