People built cities around .......
rivers.
........... grow on the surface of river water.
Duckweeds
......... and ......... form streams that flow downwards from mountains.
Rainwater / melting snow
......... also live in rivers.
Animals
The largest river in the world is .........
The Amazon.
When a river clears soil and rocks, this makes a .......
valley.
Rivers can be wide or .......
narrow.
We produce electricity from ....... on rivers.
dams
Gorges and canyons are ...............
deep valleys.
Dangerous ......... and bull sharks live in the Amazon River.
piranhas
Rivers are one of the .............
natural resources.
The longest river in the world is ...........
the Nile.
As one stream flows down, other streams join it to form a .........
river.
Rivers also help .........
plants.
Rivers can be short or ......
long.
Rivers start from ...........
mountains.
......... small rivers join the Amazon.
15.000
We can ......... water from rivers.
drink
Fast flowing rivers form ................
gorges and canyons
.............. covers the Amazon.
The Amazon Rainforest
When ............. grow up, they fly away from rivers.
mosquitoes