1. By:
Santi, Júlia
and David.

2. The rivers has three parts: the upper course, the middle
course and the lower course.

3. Wehre the rivers start
The rivers start in the mountains and start with the
snow, with the ice, with the rain and with a
aquifers.

4. In the rivers you can find meanders, waterfalls, trybutaries,
confluences, a flood plain, the mouth of the river, a delta and
the source.