Why is to impossible to give this wave a smaller amplitude and a smaller frequency ?

the answer is: metamorphic rocks often show the presence of fossils, also a

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-lavira: )

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.