Environmental Science
The wind-chill factor:

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

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Environmental Science
Which of the following regarding ecological pyramids is not correct?

The total energy flow at successive tropical level always decreases
The pyramid of energy expresses mainly the rate of food production
In deep water ecosystem, the pyramid of biomass is upright
In tree dominated ecosystem the pyramid of numbers is inverted
In most ecosystems, the pyramid of numbers and biomass are up right

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