Which type of space heater is generally the most expensive to operate?

A) Electric space heater B) Kerosene space heater
C) Vented gas space heater D) Unvented gas space heater


A

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What impact does genetic engineering have on plants?

What will be an ideal response?

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As food production increased, a system of ____________________ was established where goods such as pottery or clothing were exchanged for food produced by the farmer

Fill in the blank(s) with correct word

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OSHA is not required to post materials but is required to communicate orally about safety and health issues that concern employees.