Because rivers like the nile, tigris, and euphrates flooded in ancient times

i think option 3. would be ur best bet and u need to write it urself

have a good day

8 years 100% positive

explanation:

brainliest means the answer that is best and you found it very

if you ask any question and 2 persons gave you answer for your question and the answer of one person you liked the most and found it most the we can mark it as brainliest . at the side of every person's answer an option of brainliet then we can appericiate the user by marking it as brainlist

if someone marks our answer as brainliest then we can get ranks also

done.