Why do you think wovoka and his ghost dance became so popular among indian tribes in the southwest?

Wovoka and his ghost dance became so popular among Indian tribes in the Southwest because they believed that the ceremony would reunite the spirits of the dead with those of the living, and the power of these spirits could be harnessed in battle with white settlers and the US Army .

a. poison gas was sprayed over battlefields by airplanes to weaken enemy positions before major attacks.