Environmental Science
Which of the following helps to explain why even though northern latitudes experience 24 hours of sunlight on June 22, they are not warmer than latitudes further south?

Increased cloud cover reflects solar energy in the northern latitudes
Some of the sun's energy is reflected by snow and ice in the northern latitudes
All of these
Solar energy is used to melt frozen soil in the northern latitudes
Solar energy is spread over a larger area in northern latitudes

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Environmental Science
The wind-chill factor:

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

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