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Don’t use for points bc I’ll take the point back

Which of the following is defined as combinations of soil particles that vary in size and shape?

How many time zone are there on earth

Which revelation resulted from the observation of the spectrum of different galaxies? a. there were more galaxies whose spectrum was blueshifted b. there were no galaxies whose spectrum was redshifted c. there were more galaxies whose spectrum was redshifted d. there were no galaxies whose spectrum was blueshifted