1. What is the longest river in Africa? Nile River
2. What is the longest river in South America? Amazon River
3. What continent has no rivers? Antarctica
4. What is the name of the beginning of a river? the source
5. What is the name of a river or stream that flows into a larger river? tributary
6. What is the name of a stagnant lake that forms alongside a river after the river changes course? oxbow lake
7. What is the name of the end of a river, where it empties into a large body of water? mouth
8. River deltas usually have what shape? triangle (or triangular)
9. What is the name of the area where a river meets the sea or ocean? estuary
10. What is the name of the natural cycle in which water travels from the earth to the atmosphere and back again? water cycle (or hydrologic cycle)