Why do poinsettias always naturally flower at Christmas?
What will be an ideal response?
Because they are photoperiodic and the night length is correct in winter
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A conductive optical fiber cable for general-purpose use is marked as Type ____________________.
Fill in the blank(s) with the appropriate word(s).
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Proper lighting requires approximately _____ square foot of window space for each 20 square feet of
floor area.
a. 1 c. 2 b. 3 d. 4
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When the ends, sides, or corners of an object are to be rounded, what is shown and dimensioned?
A) An extension B) A chamfer C) A counterbore D) A radius
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In the standard proportion for chain manufacturing, the chain width is approximately _____ of the chain pitch
a. 5/16 b. 5/8 c. 1/8 d. 1/2
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