Environmental Science
The gas responsible for the greenhouse effect on Venus is:

Ozone (O3)
Water vapor (H2O)
Nitrogen (N2)
Carbon dioxide (CO2)
Oxygen (O2)

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Environmental Science
The wind-chill factor:

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

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