A problem with using doorways as ventilation openings is that ______.

a. this technique compromises personnel entry & exit
b. it is more difficult to control the ventilation process
c. the large opening can admit too much air
d. this technique tends to produce churning


Answer: a. this technique compromises personnel entry & exit

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What is the minimum slope required of a roof?

What will be an ideal response?

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An ____________________ is a protein produced by the immune system that binds to foreign proteins or glycoproteins specifically and facilitates their destruction

Fill in the blank(s) with correct word

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The involuntary activities of the body, such as the beating of the heart of the animal, are controlled in the lower part of the brain called the:

a. Cerebrum c. Pituitary gland b. Cerebellum d. Medulla oblongata

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A firm's operating expenses for the first half-year are as follows: Salaries:  $1,250,000; Utilities:  $120,000; Maintenance: $135,000; Advertising:  $45,000; Delivery:  $70,000 and Depreciation:  $160,000.  What percent of the operating expenses is salaries and what angle in degrees would be constructed in a circle diagram to represent salaries?  Round each answer to the nearest whole number. ?

Fill in the blank(s) with the appropriate word(s).

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