Which of the following is true about hydro energy? (Select the best three answers.)Question 22 options:Hydro energy is used more often in flat areas with little precipitation..Hydro energy is likely to be used more heavily in the future. Most hydro energy is produced by dams. Hydro energy supplies the U.S. with almost nine percent of its electricity. Dams affect the migration of salmon. Dams don't cause thermal pollution.