Tremendous amounts of water flow steadily over Niagara Falls, which straddles the border of New York and the Canadian province of Ontario. The water moves at speeds ranging from 2 to 3 feet per second. Over time, what will most likely happen to the rock wall behind the falls?

Select the correct answer from each drop-down menu. this map shows how climate change might affect precipitation patterns in the great plains of the united states by the end of this century. brown shows a decrease in precipitation, and blue shows an increase. the maps differ based on the predicted levels of greenhouse gas emissions. the maps show that northern areas should get . southern areas will likely get . to use these maps to prepare for natural disasters in the great plains, scientists need to ask, ?