A family goes on a walk beside a large river. What would most likely happen to the river if oceans did not exist? Please help me:( The question is science but it did not have science

There is no graph to look at on here, but i shall explain them to you. a line graph is just in its title it’s a graph with a line running through the dots to show an increase or decrease. a bar graph is used to show how much or how little something is so a comparison. a scatter plot is used to graph points to tell the data. and i don’t know what a histogram is.

You can find results and justify them? you can test your hypothesis