A PALEONTOLOGIST WHO IS RESEARCHING EXTINCTIONS NOTICES THAT CERTAIN FOSSILS ARE NEVER FOUND ABOVE A LAYER OF SEDIMENT THAT CONTAINS A LAVA FLOW. SHOULD
THE PALEONTOLOGIST USE RELATIVE DATING, ABSOLUTE
DATING, OR A COMBINATION OF THE TWO TO DETERMINE WHEN
THESE ANIMALS BECAME EXTINCT? EXPLAIN YOUR ANSWER.

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the cost of mining is extremely low compared to the money earned from mining, creating income to improve the environment.

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the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.