Practice Quiz

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

Select how would you like to study

Study Mode Free Daily Question Test Mode
86.
The extensive coal beds that formed during the Pennsylvanian period are primarily made from:
  1. The compressed remains of microscopic marine organisms.
  2. Solidified oil deposits that were slowly heated over millions of years.
  3. The fossilized remains of swamp vegetation.
  4. Lithified mud deposited when shallow seas covered parts of North America.
See answer
87.
During which of the following epochs was Long Island, Cape Cod, and Martha's Vineyard formed?
  1. Eocene
  2. Miocene
  3. Pliocene
  4. Pleistocene
See answer
88.
In New England, it is common to find striations in the surface of exposed rock outcrops. These linear grooves are primarily produced by:
  1. Ice that is well below its freezing point at the base of surging glaciers.
  2. Extreme temperature changes that produce fractures in the bedrock underlying glaciers.
  3. Large rocks that are embedded in the base of glaciers.
  4. Silt-rich water under tremendous pressure at the base of continental glaciers.
See answer
89.
In some desert regions, a thin layer of closely packed pebbles and cobbles covers the ground surface. This phenomenon, known as desert pavement, is primarily caused by the:
  1. Differential erosion of sediments by wind.
  2. Slow dispersal of material from the base of alluvial fans by gravity.
  3. Breakup of bedrock under hot and dry conditions.
  4. Deposition of coarse-grained sediments during flash flooding.
See answer
90.
Which of the following properties of water is primarily responsible for its role in mechanical weathering?
  1. Water increases in density as it goes from 0°C to 4°C and then decreases above 4°C.
  2. The capacity of liquid water to store heat energy is very high.
  3. The hydrogen bonding between water molecules gives it a high surface tension.
  4. Water increases in volume as it goes from a liquid to a solid state.
See answer

Select how would you like to study

Study Mode Free Daily Question Test Mode