Environmental Science
The largest annual ranges of temperatures are found:

At polar latitudes over land
At the Equator
At polar latitudes over water
In the Northern Central Plains of the United States
At middle latitudes near large bodies of water

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Environmental Science
The wind-chill factor:

Determines how low the air temperature will be on any given day
Relates body heat loss with wind to an equivalent temperature with no wind
Indicates the temperature at which water freezes on exposed skin
Tells farmers when to protect crops from a freeze
Takes into account humidity and air temperature in expressing the current air temperature

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