Amendments to potting soil mixtures may include all of the following EXCEPT ____
a. sand
b. perlite
c. vermiculite
d. hematite
e. shredded plastics
f. sphagnum peat
g. composted rice hulls
h. coconut fiber
D
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What is the primary purpose of the low-pressure control in a heat pump?
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What will be an ideal response?
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A) Heating coil. B) Fan. C) Boiler. D) Furnace.
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All wind trubine manufaturers use forced air cooling systems for their generators.
Answer the following statement true (T) or false (F)
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