Environmental Science
Frost forms when:

Objects on the ground cool below the dew point temperature.
The dew point is 32oF or below.
All of these
Water vapor changes into ice without first becoming a liquid.

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Environmental Science
Which of the following is false?

The energy content in a trophic level is determined is determined by considering a few individuals of a species in that trophic level.
Rate of succession is faster in secondary succession
Phytoplanktons are the pioneers in the aquatic ecosystem
The succession that occurs in newly cooled lava is called primary succession
Quantity of biomass in a trophic level at a particular period is called as standing crop

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