The crow tribe sought power through:

a) visions
b) magic
c) oracles
d) divination

Exposed great deposits of coal and iron ore

The answer to this question is  c. pharmaceutical accumulation  reclaimed water refers to the water that being used again after it already  used for agricultural purposes.this type of water often contains pharmaceutical accumulation because of the chemical fertilizer that is used for the plants is absorbed into the water.

Answer (d) the greenhouse effect is primarily caused by car and trucks;