What are three sources of Ca and Mg in a greenhouse crop system?
What will be an ideal response?
The water source, liming materials in the root substrate, fertilizers.
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Which of the following conditions could result in an undercharged batteries?
A. loose belt (s) B. defective diode trio C. residual magnetism in the rotor D. all of the above
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The right-side view shows length and depth
Indicate whether the statement is true or false
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The smallest incremental markings on analog gauges designed for R-410A are generally:
A) 10 psi. B) 20 psi. C) 5 psi. D) 1 psi.
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What is the unit of measure for the power delivered to the load in a DC circuit?
A. hertz B. volt-amperes C. VARs D. watts
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