a dam is built on a river that has a river bed that is primarily sand. you have a house just downstream of the dam, and you like to go trout fishing in the river in front of your house. a few years after the dam is built, it is likely that: group of answer choices you will have built a ladder or steep path to get down to the river, because the clean water released by the dam will have washed a lot of the sand away and lowered the elevation of the river in front of your house.