A vortex meter works on the principle that flow rate is proportional to the __________ of the vortices produced behind a bluff.
A. length
B. width
C. frequency
D. temperature
Answer: C
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Biotechnology has been in use for thousands of years
Indicate whether the statement is true or false
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The light from a laser travels in ____ waves.
A. multiple frequency B. parallel C. white light D. chromatic
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Describe a program designed to prevent an outbreak of an insect or mite population in your greenhouse
What will be an ideal response?
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The exchange complexes of strongly acid (pH 4.5 ) mineral soils are saturated mainly with ________
A) tightly bound H+ ions B) exchangeable H+ ions C) exchangeable Al3+ ions D) tightly bound Al3+ ions E) exchangeable Al(OH2)+ ions
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