Which was not a challenging environmental condition the earliest civilizations faced? a. inadequate rainfall for farming b. violent and destructive spring floods c. limited access to precious metals d. eroded soil with poor nutrients

i am pretty sure the answer is c

c

Explanation:

took the test and got it right edg 2020

the correct answer is d. the monetary reserve is a set of funds represented in currency, money or similar, saved as a forecast of possible needs or for legal reasons.

the increase or decrease in the monetary base influences in the increase or decrease of the inflation rate. therefore, the excess of monetary reserve will cause the reduction of inflation.

in 1862, president lincoln's emancipation proclamation opened the door for african americans to enlist in the union army. although many had wanted to join the war effort earlier, they were prohibited from enlisting by a federal law dating back to 1792.

explanation: