15. a thesis statement about the impact of floodwaters on early river civilizations would most
likely connect which three words? select all that apply. (there are three answers
(3 points)
fertile
irrigate
renew
destroy
silt

The correct answers are: renew - fertile - silt.

The floods of the big rivers were crucial for the existence and prosper of the river civilizations. This was due to the repetitive natural cycle of the rivers, when they flooded the surrounding area and they were renewing the fertile silt every year. The renewing of the fertile silt meant that the soil was of high quality every year, and because of that people were able to produce large amounts of food, not just for their own needs, but also for trade.

answer: sure

explanation:

answer; /// the correct answer is evidence of the olmec civilization has been found in southern american in a hot steamy forest, archaeologists have found earthen artifacts at several sites that were evidence of the olmec civilization. these   artifacts were mounds,courtyards and pyramids build of stones, also on top of the mounds were many monuments made of stone, some of these stone structures are very large, they weigh as much as 44