Practice Quiz

Praxis II General Science: Content Knowledge Exam Prep - Question List

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61.
Which of the following climate characteristics is the primary factor controlling the type of vegetation in the prairie of the upper Midwest?
  1. Strong seasonal winds
  2. Limited annual precipitation
  3. Regular grass fires
  4. Temperature extremes
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62.
An occluded front typically forms under which of the following conditions?
  1. A wedge of cool air between two warm fronts is forced upward as one of the fronts overtakes the other.
  2. A cold front catches up with a warm front, forcing warm air between the fronts upward and producing rain.
  3. A wedge of cold air between two warm fronts is forced upward as one of the fronts overtakes the other.
  4. A cold front overrides another cold front, trapping warm air at the surface and producing rain.
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63.
As a result of the Coriolis effect, wind currents tend to:
  1. Cool off as they converge and rise
  2. Flow in a straight path as they cross lines of longitude.
  3. Heat up as they diverge and sink.
  4. Curve as they flow over Earth's surface.
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64.
Overcast nights tend to be warmer than clear nights even when temperatures on the preceding day have been the same. This is primarily because on overcast nights:
  1. Evaporation rates are substantially reduced.
  2. Clouds radiate infrared energy downward.
  3. Convection currents are unable to develop.
  4. Water vapor condenses, releasing energy.
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65.
Which of the following explains why the sky appears blue?
  1. Air molecules selectively scatter the shorter wavelengths of visible light.
  2. Air molecules reflect the longer wavelengths of visible light.
  3. Water vapor refracts visible light into its component frequencies.
  4. Water vapor selectively absorbs visible light at certain wavelengths.
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