Hydration involves
A) frost action.
B) salt crystal growth from evaporation.
C) the addition of water with little chemical change.
D) the chemical reaction of water.
C
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Precession of the equinox refers to ____
A) changes in the shape of Earth's orbit as it revolves around the sun B) changes in Earth's tilt as it orbits the sun C) changes in the seasons, especially from winter to summer D) the wobble of Earth on its axis
Isotopic dating has shown that the precambrian era took up ________% of all geologic time.
A. 15 B. 46 C. 95 D. 87 E. 62
Municipal solid waste makes up 96% of the solid waste generated in the U.S. Indicate whether the statement is true or false
Which of the following best explains the relationship between driving and resisting forces with respect to plate tectonics?
A. The resisting and driving forces must be equal. B. The driving forces must exceed the resisting forces. C. The resisting forces must exceed the driving forces.