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The month in which the Earth makes its closest approach to the Sun is known as the _____, which varies on a 19,000 year cycle.
Q21: In terms of plate tectonics, future oil
Q22: Over thousands of years the process of
Q23: A _ is the source of sedimentary
Q25: _ parallel the shore, but are separated
Q26: Volcanic activity releases particles and particle forming
Q27: A(n) _ represents a vertical slice through
Q31: Geologists' ideas about the composition of ocean
Q31: The Earth is warm due to _.<br>A)
Q54: _ is the compass direction of a
Q58: The last glacial minimum ended approximately 15,000