Environmental Science
Frost typically forms on the inside of a windowpane (rather than the outside) because:

There is less water vapor touching the inside of the pane
There is more water vapor touching the inside of the pane
The inside of the pane is colder than the outside
None of these

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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
In deep water ecosystem, the pyramid of biomass is upright
In most ecosystems, the pyramid of numbers and biomass are up right
The pyramid of energy expresses mainly the rate of food production
In tree dominated ecosystem the pyramid of numbers is inverted

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