You are presented with the question "what can bacteria grow on?" and the following answer choices: - fatty acids - swamp vegetation - Most plants - vinegar - amino acids - calories - protein - loose dirt Now knowing that lipids may consist of fatty acids alone, or they may contain other molecules as well and bacteria are capable of growth on fatty acids and lipids, choose the best answer.
fatty acids
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You are presented with the question "Electricity is used for energy by what?" and the following answer choices: - cucumbers - cells - computers - humans - minerals - human computers - consumers - adding heat Now knowing that electricity is used as an energy source by electrical devices and of course, computers are electronic devices, and as such, they deal in electrical terms, choose the best answer.
computers
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You are presented with the question "What removes harmful substances from water before drinking?" and the following answer choices: - Calcium carbonate - evaporation - circulatory systems - sugar - chlorine bleach - one celled organisms - glass - cyanide Now knowing that treating water is used to remove harmful substances before drinking and chlorine bleach is ideal for treating water, choose the best answer.
chlorine bleach
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You are presented with the question "burning wood is used to keep buildings what?" and the following answer choices: - comfortable - closed - homogenous - warmth - smokey - cold - staying warm - freezing Now knowing that burning wood is used to produce heat and heating and air conditioning keep the building comfortable regardless of the temperature outside, choose the best answer.
comfortable
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