Why did California form volcanoes?

Witch one is it soo it the the question b.a,b,c,d

Short answer/constructed response: respond to the question in 3-5 complete sentences. give details or examples to support your answer. attempt to answer all parts of the question in paragraph form! using the source 1 map, pick two of the 1800's territorial acquisitions you believe were the most important in the development of the united states. provide at least two reasons per territory to explain why you think they were the most important.

In yusel komunnyakaa's camouflage the chimera what is a chimeraa animal coming to vietnamb a type of military outfitc mythological creatured nick name for military units