The EPA sets the standards for contaminant levels in our drinking water that are considered safe to drink.
a. True
b. False
Answer: a
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A point on an entity that marks a particular position, such as the endpoint of a line segment or the intersection of two entities, is referred to as a(n) ____________________.
Fill in the blank(s) with the appropriate word(s).
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What are three advantages for propagation by somatic embryos?
What will be an ideal response?
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To prevent clogging by foreign matter in the water, many backflow preventers _____.
a. have replaceable filter cartridges b. are designed to be backwashed c. are equipped with strainers d. include sediment-settling bowls
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What was the first major U.S. city to require pasteurization of milk?
a. Los Angeles c. Detroit b. Boston d. Chicago
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