What are four ways to provide frost protection in the field?
What will be an ideal response?
Row covers, sprinkler irrigation, fogging, and, in extreme cases, heaters, smudge pots,
and fans.
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When soil becomes too dry for plants to access any water, it has reached the permanent wilting point
Indicate whether the statement is true or false.
List five energy sources that may need to be isolated from a piece of equipment being serviced.____________________________________________________________________________________________________________________________________________________________________________________
What will be an ideal response?
In physics, solids and liquids:
A) Will occupy the same amount of space given the temperature is below 212°F. B) Change when critical pressure is applied to the mass. C) Do not change in volume when pressures change but gases will change. D) Change in volume when critical temperature is applied to the mass.
Why should ultraviolet germicidal lamps not be handled with bare hands?
A) The coating on the outside of the lamps is toxic B) The oil from your fingerprints can lead to premature failure of the lamp C) The exterior UV coating will wipe off, reducing the UV output D) The residual UV in the lamp coatings can cause severe burns