Environmental Science
Which of the following can be used as a method of protecting an orchard from damaging low temperatures during a radiation inversion?

Wind machines
All of these
Orchard heaters
Irrigation (cover the area with water)

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Environmental Science
Which one is true?

symbiosis when neither population affects each other
commensalism when the interaction is useful to both the populations
commensalism when none of the interacting populations affect each other
symbiosis when the interaction is useful to both the populations

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