The career of the privateer sir Francis drake shows that

the causes of the dust bowls were severe droughts,   lands became dry and hard, temperature was higher than usual, hot and dry conditions killed crops, high winds. because of those factors, the winds kicked up dry soil and created clouds of dust.

a stronger central government  

its what they are

1. explain aspects of the democratic process as it was developed in ancient athens

2. trace the roots of the americans political process to ancient athens

3. explain the relationship of citizens to the political process