One effect European expansion had on the 16th and 17th centuries?

One of the effects the Europeans exceptions had on the 16th and 17th centuries was that they discovered all of the new sea route to India, spices and pepper where broth to Europe by the sea route to India

rosevelt. 1973. "slaves everywhere"

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.