How do rivers change?
What is the history of the Nile?
What is the river in India that is sacred?
What's important about a river bed?
What are the benefits of a nearby river?
What are the positive and negative effects of a hydro dam on a river?
What are the different flora and fauna in rivers?
Where are the most rivers in the world?
Which rivers have interesting bridges?
How wide is the widest part of the Amazon River? How much water flows in it?
Why are all the trees getting cut down in the Amazon Basin?
What is being done to preserve the life and biodiversity of the amazon?