Environmental Science
What is meant by ex-situ conservation?

Conservation of a species outside its natural habitat
Conservation of a species by protecting its habitat along with all other species living there
Conservation of forest eco system
Conservation of plants

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Environmental Science
The wind-chill factor:

Takes into account humidity and air temperature in expressing the current air temperature
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

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