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A plane mirror is in a vertical plane and is rotating about a vertical axis at 100 rpm. A horizontal beam of light is incident on the mirror. The reflected beam will rotate at:
Oldest Layer
Pertains to the earliest or first-formed layer of sediment or rock in a sequence, indicating the earliest period of deposition.
Numbered Units
Quantitative values assigned to items or units in order to denote quantity, order, or position.
Youngest
This term relates to the latest or most recently developed strata or earth materials in geological studies.
Ocean Basins
large depressions on the Earth’s surface that are filled with ocean water.
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