Area in which two types of air masses meet

How would you find the measure of one interior angle

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

Summarize the president's/vice president's roles and responsibilities in 8 sentences