The effect of current through the body is harmful, and currents as low as ____ ampere are generally fatal.
a. 0.05
b. 0.15
c. 0.25
d. 0.5
b. 0.15
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Infectious viruses can be transmitted by _____
a. skunks c. bats b. raccoons d. all answers are correct
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When edging a bed with an edging tool, the tool is dug into the ground to what depth for removal of the soil wedge?
a. 2 to 4 inches c. 6 to 8 inches b. 4 to 6 inches d. 8 to 10 inches
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An STC of 45 can be increased to 49 by including ____ insulation.
A. fiberglass B. wood C. wool D. foam
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A conductor is made from a material that contains between _____ valence electrons.
A. one and three B. two and four C. three and five D. four and six
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