Over many winters what is snow compressed into?

Write a short paragraph of about 150-300 words. explain how the physical environment can limit human activities.

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

The largest employer of cartographers is the