After reading a source, what is the historian’s next step in breaking down the source?

determining the main idea of the source

Explanation:

because it makes sense

the answer is a glaciers carved a large valley that later flooded and became puget sound

explanation:

hitler's  "rise" can be considered to have ended in march 1933, after the reichstag adopted the enabling act of 1933 in that month. president paul von hindenburg had already appointedhitler  as chancellor on 30 january 1933 after a series of parliamentary elections and associated backroom intrigues.