The lowest layer of the atmosphere is the ________
A) mesosphere B) troposphere C) stratosphere D) ionosphere
B
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The air inside a room is at a temperature of 35°C and has a mixing ratio of 7.6 g/kg. If the room temperature decreases by 5°C per hour, how many hours will it take for the air to reach saturation?
What will be an ideal response? ____ hours
Minerals are formed by the process of
A. magma differentiation. B. silica enrichment. C. crystallization. D. partial melting.
Which of the following is true of dolomite, calcite and silica?
A) Dolomite is not secreted by invertebrate animals for shells. B) It is not different in any way from calcite, but its molecules are arranged more tightly than silica's. C) It is not different in any way from silica, but its molecules are arranged more tightly than calcite's. D) They are all the same.
The "sphere" that intersects with all of the other spheres is the
A. biosphere. B. hydrosphere. C. lithosphere. D. atmosphere.