What are urinals that protect their trap seal by using chemical liquid seals called?
What will be an ideal response?
waterless urinals
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What are the advantages and the disadvantages of the differing site conditions method?
What will be an ideal response?
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One of the ways biotechnology is being used is______
a. Genetic engineering c. Semen sexing b. Embryo transfer d. All answers are correct
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If a lighting fixture is installed under a canopy or under an open porch, it is considered to be in a(n) ____________________ location.
Fill in the blank(s) with the appropriate word(s).
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In 1800, Alessandro Volta was experimenting with producing electricity. He called his battery _____.
A. cell B. secondary cell C. voltaic pile D. D-cell
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