Si un conductor a tierra entra a una caja, la cantidad de conductores permitida en la caja se reduce a:

a. 1
b. 2
c. 3
d. 4


a. 1

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Which reproductive organ produces eggs or ova?

a. testicles c. fallopian tubes b. ovaries d. oviducts

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Which four elements compose 96 percent of Earth's total mass?

a. oxygen, carbon, hydrogen, and iron b. oxygen, silicon, nitrogen, and aluminum c. carbon, iron, nitrogen, and silicon d. oxygen, nitrogen, hydrogen, and carbon

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A system model is a mathematic description of the system that generates the same transient and steady-state output response to a known input stimulus as the actual system

Indicate whether the statement is true or false

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____ can be used for recreation, to attract desirable wildlife, and to provide stimulating sights and sounds to outdoor living areas.

A. Rainwater collection systems B. Water features C. Rain gardens D. Terraces

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