Europeans often used the native rulers in a colony as intermediaries between themselves and the people. This form of government is called

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.

the manhattan project's indispensable man

people can see all information on a topic and believe it because of technology