Methyl bromide has been taken off the market as a soil fumigant for most crops because:

A. it is hard to manufacture.
B. it destroys the ozone layer of the atmosphere.
C. grafting has become cheap and is used on most field crops now.
D. there are safer ways available to fumigate soil.


Answer: B

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Electrical resistance for a given material can be a function of both area/unit thickness and material temperature. Holding temperature constant, a range of areas are tested to deter­mine resistance. The measured resistance recorded in the table is expressed in milliohms per meter of conductor length.

(a) Plot the data on rectangular graph paper with area as the independent variable.
(b) Plot the data on log-log graph paper with area as the independent variable.
(c) Plot the data on semilog graph paper with area as the independent variable.
(d) Compute equations from these three plots using the method of selected points.
(e) Plot and find equations for parts (a), (b), and (c) using computer-assisted methods.
(f) What would be the best curve fit for this application?

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A grinder that is used to reprocess material is called a ____.  ?

A. ?runner B. ?pelletizer C. ?granulator  D. ?sprue

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The strength or classification of a bolt is known as ________

A) Pitch B) Gauge C) Grade D) None of these

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Which of the following bad driving practices is the most likely cause for clutch facings to be "thrown off" the clutch discs?

A. coasting B. riding the clutch pedal C. starting in an incorrect gear D. skip-shifting

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