It is believed that ____________________ was used as the main source of energy for thousands of years before other sources were developed

Fill in the blank(s) with correct word


fire

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? In the distribution below, what is the mean?            4, 6, 7, 9, 12, 17, 19  

A. ?9.6 B. ?10.6 C. ?12.6 D. ?14.6

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What part of a solution is the substance present in a solution in the largest amount?

A) Soluble B) Solvent C) Insoluble D) Solute

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Most welding hoses used today are molded together as one piece and are referred to as ____________________ hose.

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

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Solutions with a high conductivity require a sensor with a cell constant __________ than 1.

A. less B. greater

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