When a stalagmite has an oxygen-18 to ____________________ ratio that is low, the climate at the
time the stalagmite formed was relatively ____________________ Fill in the blank(s) with the appropriate word(s).
oxygen 16; cool
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Which of the following is a common metamorphic process?
A) Deforming objects into new shapes B) Rotation of minerals into a common orientation C) Remobilization of chemical constituents into light and dark bands D) Dissolving some parts of the rock and carrying the material away E) All of these are correct.
The oceans cover about 50 percent of the earth's surface
Indicate whether the statement is true or false
The concept that ethnicities have the right to govern themselves is known as
A) centripetal determination. B) nationalism. C) universal suffrage. D) self determination. E) sovereignty.
Consider a freely falling boulder equipped with a speedometer on a planet where the acceleration due to gravity is 20 m/s2. In falling freely, its speed reading would increase each second by
A. 20 m/s. B. 30 m/s. C. 10 m/s. D. depends on its initial speed