____________________ detectors operate by emitting a pulse of high frequency sound and then detecting the echo when it bounces off an object.
Fill in the blank(s) with the appropriate word(s).
Ultrasonic
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Mulching plants will insulate them from the cold and protect them from drying out
in the heat.
Indicate whether the statement is true or false.
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For effective sanitation, the strength of a Quats should be at least a:
What will be an ideal response?
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Which of the following should be used to cut external threads?
A. Tap B. Die C. Allen wrench D. None of the above
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What are the three states of matter?
What will be an ideal response?
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