E is the answer. It is a hurricane which causes Droughts (temperature spikes), and floods.
Some causes and effects of European exploration is:
1. They brought diseases to the U.S and Africa which effected those people and causing them to die
2. They found Africans and wanted their gold and money which effected them to start the American slave trade
And many other reasons....
They were the Dravidians.
C Mississippian peoples cultivated corn on Mississippi Valley floodplains and created pottery and immense earthworks
The native populations living along the Mississippi Valley used clay from the floodplains to create potter and the ground provided good soil for corn production. What they are most known for are the earthworks or mounds that they built for burial and artistic works to represent their gods. Cahokia was a large mound site near current day St. Louis and demonstrates the skill and size of these mounds.
