What factors was key to the formation of the first civilization in the Nile Valley?

The main factor was water every civilization needs a water source then only can it flourish so nile valley flourished cause of the river the silt from it to farm and yearly flooding

Explanation:

all of the following apply except for (a. excessive credit on real estate resulting in defaulted loans.

in 1819, panic swept the country due,in part, to the rapid expansion of american manufacturing during the war of 1812 and the distress caused by the post-war british competition. the rapid expansion of american farming was another factor.

explanation:

billygate was not one of the scandals