If agasoline driven combustion engine converts gasoline into motion, then what does a combustion engine convert into motion? Answer choices: - Gasoline - Grass clippings - energy - fossil fuels - Energy. - heat energy - A steam engine - An electric motor
Gasoline

If materials that prevent the flow of heat can be used for keeping warm, then materials that prevent the flow of heat can be used for keeping what? Answer choices: - airy - power - warm - liquid - dry - energy - empty - down
warm

If viruses are not tissue, then viruses are not what? Answer choices: - tissue - protected - expelled - disease - humans - A drug. - parasites - dangerous
tissue