An alternative method of hydroelectric power is _______________,which uses excess electricity generated during off peak hours to pump water up to a higher elevation through a penstock where it is stored in a reservoir
Fill in the blank(s) with the appropriate word(s).
pumped storage
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_____ stains are usually difficult to remove and should be scrubbed with a scouring powder, preferably one containing bleach.
A. Smoke B. Iron C. Oil and tar D. Plant
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The ____________________ is also used when debugging a new or modified program.
Fill in the blank(s) with the appropriate word(s).
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What are three advantages and one disadvantage of hydroponic growing systems over soil culture?
What will be an ideal response?
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An AC voltage has an instantaneous value of 110 volts. Find to the nearer degree the phase angle if the peak voltage is 155.5 volts.
Fill in the blank(s) with the appropriate word(s).
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