Fact 1: Erosion causes a river to become deeper and wider.

Fact 2: Erosion alters the constituents carried by water.

Given the two facts above, answer the question "Deeper and wider rivers alter the constituents carried by what?" with the following options: 
- rivers
 - atmosphere
 - mussels
 - clouds
 - salmon
 - moisture
 - water
 - Frogs.


 

       water  