Which substance in refrigerants is most responsible for atmospheric ozone depletion?
a. Chlorine
b. Carbon
c. Fluorine
d. Hydrogen
a
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Watermelon requires soil that is the same as _____
A) beans B) corn C) cucumbers D) tomatoes
Insect-attacking nematodes are in the genera Heterorhabditis and:
A) Shattnernema B) Yehudinema C) ?Steveerinonema D) Steinernema
Two technicians are discussing drum brake self adjusters. Technician A says that a frozen starwheel adjuster can cause the brakes to lock up due to the adjusting lever being unable to move the adjuster causing the linkage to bind. Technician B says that some brakes self adjust when the brakes are applied rather than when released. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
A run of 1,000 feet with a 1.2% grade will result in a drop of __________ inches.
Fill in the blank(s) with the appropriate word(s).