Terms in this set (20)
Streams and smaller rivers that feed into a main river are called tributaries
Streams and smaller rivers that feed into a main river are called ________
Flow toward main river by gravity
gravity means what
Flow toward main river.
A river and all its tributaries together make up a what
riversystem means what
A river and all its tributaries together make up a river system
The land area that supplies water to a river system is called a what
The land area that supplies water to a river system is called a watershed.
One watershed is separated from another by a ridge of land called a what
One watershed is separated from another by a ridge of land called a divide.
The Continental Divide is the longest divide in North_____________
The Continental Divide is the longest divide in North America.
divide means america
america means north america
volcanoes block rivers when they erupt
what contains standing water
ponds and lakes
are ponds shallower than lakes
lakes are deeper than ponds
This mixture of water is called what
Over many years, the nutrients build up in a process called what
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