People had the means to pasteurize milk and make it safe to drink long before

they began to do it. Why do you think it took so long for people to realize the
usefulness of pasteurization?



What will be an ideal response?


The development of microscopes was needed to observe and document the
existence of microorganisms. Years of research were needed to determine the role of
the microorganism in causing illness

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Which of the following would LEAST-Likely be used to check for internal air leaks before the engine is disassembled?

A. Smoke test B. Cranking vacuum test C. Compression test D. Propane test

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The boiling point of water is ____ at sea level.

A. 1120F B. 1800F C. 2120F D. 2320F

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In the truss shown, find the value of ?DEA in degrees.

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

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Which of the following describes two circuit elements that have two points in common?

A) They would be connected in a series/parallel configuration. B) They are considered to be in opposition. C) They are considered to be in parallel. D) They would be connected in series.

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