Rock salt deposits can be found in dry lake beds, inland marginal seas, and enclosed bays and estuaries in arid regions of the world.
The model were the sun is in the center of the solar system is called heliocentric.
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Below are the choices. the answer is C.
A) mass extinctions, leading to bottleneck effect
B) major evolutionary innovations, leading to rafting to nearby continents
C) a variety of empty ecological niches, leading to adaptive radiation
<span>D) adaptive radiation, leading to founder effect</span>
Whatever fossil is at the lowest layer is the oldest cuz the old fossils lived along time ago and when they died the fossils were buried.
Great plains is the broad interior are of north america that used to be grasslands