Why do volcanoes and earthquakes occur along the
Ring of Fire? Think about:
• tectonic plate movement
• movement of magma

Which revolution led to the development of these civilizations?

The earth rotates on its axis and revolves around the sun every

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