Which describes a geographic reason for the differences in the way Native American groups lived? Tall mountains and wide rivers prevented any contact or trade between native American groups.

As they came in contact with people in different parts of the continent, Native Americans copied what they saw.

Native American groups chose where to live based on the climate and terrain they preferred.

As people spread across North America, they adapted to the different kinds of terrain and climate they found.

explanation:

there are two statements that are incorrect.

1. the marshall plan was a lend lease program. it was an economic plan that europe redevelop itself after wwii.

2. einstein didn't really do anything to further the allied cause in building the bomb. he merely sent a letter to fdr telling him (in 1939) that if the united states entered the war, perhaps it would be wise to build the bomb before germany did. i would say this answer is incorrect, but when america entered the war 2 years later, fdr thought it might be a good idea to take einstein's advice.

the 4th choice is definitely so wrong that is likely the single answer of this question

hi!

your answer is b

hope this !

~courtney

the conditions that made the byzantine empire vulnerable to attacks by the muslin turks were the sack of constantinople by western crusaders, the conquests of the sultanate of rum, presence of rival kingdoms and finally the set up of fiefdoms at the empire which were owned by the ghazis (turkish warriors).