Scale on plumbing fixtures is produced by a water-quality parameter called:

a. hardness
b. total dissolved solids
c. acidity
d. pH


a

Environmental & Atmospheric Sciences

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The life cycle of a metal product ends with ____.

A. converting the metal to a product B. mining C. discarding the product D. separating the ore from waste material E. melting the metal

Environmental & Atmospheric Sciences

Communication technologies are increasing the number of speakers of "small" languages

Indicate whether this statement is true or false.

Environmental & Atmospheric Sciences

Most marine oil deposits are extracted from offshore platforms resting in water less than 100 meters deep

a. True b. False

Environmental & Atmospheric Sciences

The amount of a good or service available to be purchased is the

A. resource. B. demand. C. supply. D. None of these are correct.

Environmental & Atmospheric Sciences