Environmental Science
A red shirt

Selectively scatters red wavelenghts of visible light and absorbs the rest
Selectively absorbs red wavelenghts of visible light and scatters the rest

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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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Environmental Science
Which of the following statement is incorrect regarding ecological pyramids

The pyramid of biomass is inverted in aquatic ecosystem
The pyramid of energy is inverted in ocean ecosystem
The pyramid of biomass is upright in grass land ecosystem
The pyramid of numbers is upright in grass land ecosystem

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