Will letting tap water stand overnight get rid of the chlorine in it and make it safe for houseplants?
What will be an ideal response?
No, chlorine escapes only very slowly as a gas.
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Figure 39-1
In the accompanying figure, when the tank is empty, the ____________________ de-energizes solenoid C.
Fill in the blank(s) with the appropriate word(s).
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Honeybees are particularly adept at
What will be an ideal response?
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Coal was formed about 300 million years ago during a period of time called the ____ period
A) Monolithic B) Crustation C) Carboniferous D) none of these
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Before the joint is assembled, to remove any sources of contamination, clean a ____ inch wide or wider band, both inside and outside of the pipe.
A. one half B. one C. one and a half D. two
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