Saturation is best defined as:
A) the point when water molecules completely stop evaporating from a water surface.
B) a mixing ratio of at least 100 g/kg.
C) a vapor pressure greater than 1000 mb.
D) equal numbers of water molecules evaporating from and condensing into a water surface.
D
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Nellie pulls her sled by a rope 45° to the horizontal. The horizontal and vertical components of force are
A. equal in magnitude. B. each about 0.7 times the force she exerts on the rope. C. both of these D. neither of these
On a political globe or world map follow the International Date Line across the Pacific Ocean. Why do you think the International Date Line is not straight but zigs and zags?
What will be an ideal response?
Subsidence of organic sediments occurs by:
a. flooding and saturation b. compaction of the soils beneath the organic sediments c. compression of the materials by newly deposited sediments d. drainage and oxidation
Which stage in thunderstorm formation is characterized by updrafts accompanied by downdrafts induced by falling precipitation?
A. cloud merger stage B. cumulus stage C. mature stage D. dissipating stage