What are four factors in the root zone that affect hydroponically grown plants?
What will be an ideal response?
Temperature, pH, electrical conductivity (EC), and oxygenation.
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____________________ are two (or more) diameters that are shown on a drawing as being on the same center line.
What will be an ideal response?
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Vents prevent trap seals from draining by _____.
a. decreasing air pressure b. equalizing air pressure c. limiting water pressure d. increasing air pressure
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Flax plants are typically harvested when they reach a height of about six feet
Indicate whether the statement is true or false
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The best way for a driver to avoid potentially dangerous situations is to
A. always travel in the right lane B. never travel in a pack of vehicles C. never use a cell phone in traffic D. all of the above
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