Practice Quiz

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

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96.
Small-scale geothermal heating and cooling systems for individual homes have become popular throughout the United States. These home geothermal systems primarily rely on the:
  1. High temperature of groundwater found deep within Earth.
  2. Compression of steam pumped underground.
  3. Infrared energy given off by soils at night.
  4. Year-round stability of the temperature underground.
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97.
Carbon is cycled through the atmosphere, the hydrosphere, the biosphere, and the lithosphere. Which of the following describes one step in the movement of carbon from the atmosphere to the lithosphere?
  1. The production of carbonic acid from limestone during weathering.
  2. The extraction of bicarbonate ions from seawater during coral reef formation.
  3. The formation of carbon dioxide during the decay of biomass.
  4. The absorption of atomic carbon in seawater by deep-ocean sediments.
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98.
Economically valuable minerals, such as gold and silver, are often found in the country rock surrounding large plutons. The formation of these types of minerals under these conditions is commonly the result of:
  1. Isostatic readjustment.
  2. Magmatic differentiation.
  3. Hydrothermal alteration.
  4. Chemical weathering.
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99.
Which of the following is a characteristic of muscovite mica and biotite mica that makes them easy to identify? 
  1. Specific gravity.
  2. Chemical reactivity to acid solutions.
  3. Conchoidal fracture.
  4. Perfect cleavage in one direction.
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100.
Bowen's reaction series helps geologists explain the occurrence of various minerals in a particular igneous rock primarily because it defines the:
  1. Temperature at which different minerals in a magma will solidify.
  2. Rate at which crystals grow within a cooling magma.
  3. Chemical changes that occur after a rock has solidified.
  4. Crystal systems that will develop as a rock forms under pressure.
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