The Physical Geography of the United States and Canada

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1

Divide

1

a high point or ridge that determines the direction rivers flow

2

Headwaters

2

the sources of river waters

3

Tributaries

3

smaller streams and rivers that feed into a main river

4

Fishery

4

areas (freshwater or saltwater) in which fish or sea animals are caught

5

Timberline

5

elevation above which it is too cold for trees to grow

6

Chinook

6

a warm dry wind blowing down the eastern slopes of the Rockies

7

Prairie

7

a treeless grassy plain

8

Supercell

8

violent thunderstorms that can spawn tornadoes

9

Hurricane

9

a large, powerful windstorm that forms over warm ocean waters

10

Blizzard

10

a heavy snowstorm with winds of more than 35 miles per hour and reduced visibility of less than one-quarter mile

Categories: Ancient