The mouth is where the river ends and meets the?
Sea
The source is where the river...?
Starts
The point at which two rivers meet is called?
confluence
How many courses are there in a river?
3
In which course can we find meanders?
Middle course
The land over which a river flows is a...
Riverbed
The area of land that is drained by a river and its tributaries is a...
River basin
The water flows more slowly during this stage
Lower course
The water flows quickly and the river is smaller in the...
Upper course
Waterfalls are mainly found in what stage?
Upper course
A river that empties into a bigger river is called a ...
Tributary
The water in rivers is fresh water. True or false?
True
This is a group of river basins that empty into the same sea
Drainage basin
When underground water flows naturally to the surface, what is formed?
A spring
When precipitation falls to the ground, it filters down into the ground through...
Porous rocks
The rocks that don't let water pass through are...
Impermeable rocks
