What occurred after the spanish introduced the horse to north america? a. pacific northwest indians were able to drive the spanish off their lands. b. plains indians started hunting buffalo more efficiently. c. southwestern indians planted different crops than before. d. eastern woodland indians increased the size of their fields.

The correct answer is b. Plains Indians started hunting buffalo more efficiently.

Im 100% percent sure, please mark me brainliest.

the dust bowl, otherwise known as the dirty thirties, was a huge dust storm that killed multiple (and i mean  multiple) farmer's crops, leaving them homeless, and foodless, and jobless. in california, there were 5.7 million residents, and the population shrank as mexicans were repatriated. however, when the dustbowl happened, a lot of people began to move to california. by 1940, 250,000 people had arrived. therefore, your answer would be  the population increased, massively.  i hope this !

explanation:

pan-africanism or pan-africanism is a political, philosophical, cultural and social movement that promotes african twinning, the defense of the rights of african people and the unity of africa under a single sovereign state, for all africans, both africa as of the african diasporas.