Why are high efficiency particulate arrestor (HEPA) filters desirable?
What will be an ideal response?
HEPA filters are desirable since they can trap particles that can contain mold, dust mites, pollen, and bacteria.
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Originally, better ways of growing plants and animals were developed by _____
A) guessing B) systematic research C) myth and legend D) trial and error
Which of the following was NOT among the notable ethnic and African writers of the period since the 1980s?
A. Amy Tan B. Toni Morrison C. Joy Harjo D. James Welch E. Raymond Carver
Adding up to 10% ethanol to gasoline can also increase the fuel's ________
A) temperature B) color C) A/F ratio D) volatility
Which statement below best defines the term miscible?
A) The change in viscosity from cold to hot temperatures B) The lowest temperature at which oil will flow C) Oil can mix with other oils without causing problems D) The oil's resistance to flow