Biogas is produced by anaerobic digestion by a group of bacteria known as ____
a. bacilli c. methanobacteria
b. clostridians d. anaerobes
C
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How can you dispose of water on top of the ground if it cannot enter the groundwater?
A) By altering the pH level of the water B) By redirecting the water to a holding pond C) By draining the water to a lake off the property D) By redirecting the water into a well
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All plant growth regulators are plant hormones, but not all plant hormones are plant growth regulators
Indicate whether the statement is true or false
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Damping off affects which growth stage?
a. seedling c. fruiting b. flowering d. senescence
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The preferred method of cutting copper tubing for a refrigeration system is with:
A) A tubing cutter. B) A hacksaw. C) A cutting torch. D) A circular saw.
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