Which of the following is not a mineral?
A) Liquid water
B) Crystals grown in a laboratory
C) Volcanic glass
D) Piece of wood
E) All of these are correct.
E) All of these are correct.
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The charter members of the European Union were
A) Germany, France, Italy, Spain and Portugal
B) Germany, Switzerland, Italy and the Netherlands
C) Germany, France and the United Kingdom
D) Poland, Hungary, Latvia, Lithuania and Estonia
E) Germany, France, Belgium, Luxembourg, Italy and the Netherlands
If a rock is subjected to differential stress, then it means that
A) forces are pushing inward from all directions by the same amount. B) stresses are pushing outward from all directions by the same amount. C) stresses are pushing inward from all directions by the same amount. D) the amount of stress is greater in some directions than in others.
Divergence in the upper-level jet stream hinders the formation of severe thunderstorms
Indicate whether the statement is true or false
Robert Costanza of the University of Vermont estimates the monetary worth of the earth's ecological services per year at which of the following?
A. $150 billion B. $500 billion C. $76 trillion D. $125 trillion E. $500 trillion