I know that question #4 is B.) Sun
Answer:
people change government because as technology and culture changes,old laws,governments become obsolete
Answer:
They are areas where there is a severe shortage of moisture, predominantly because precipitation levels are low. In some years they may even receive no rain at all.
Explanation:
In some deserts, aridity is in part also the result of high temperatures, which means that evaporation rates are great (Mainguet, 1999).