The only substance that can exist as a gas, liquid, and solid at common Earth temperatures is
A) carbon.
B) nitrogen.
C) water.
D) oxygen.
Answer: C
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The chemical formula for halite:a
CaCO3 d. CaSO4-2H2O b. NaCl e. CaMg(CO3)2 c. SiO2
If Earth had no atmosphere, ________
A) less of the sun's energy would strike Earth B) the concentrations of Earth's greenhouse gases would be much greater than they are C) Earth would experience much larger and more severe storms D) the surface of Earth would be considerably colder
The upper mantle can be divided into two zones, the
A) asthenosphere in the lower upper mantle and part of the lithosphere in the upper part of the upper mantle. B) asthenosphere in the upper, upper mantle and the lithosphere in the lower upper mantle. C) Moho and the lithosphere. D) continental mantle and the oceanic mantle.
Even-aged and uneven-aged management are used in
A) the lobster industry. B) silviculture. C) fishing industries. D) habitat restoration.