(Question)
If alightbulb requires electrical energy to produce photons, then what requires electrical energy to produce photons? Answer choices: - satellites - an electron lens - cigarettes - an object - heterotrophs - squids - sensory neurons - a lightbulb
(Answer)
a lightbulb

(Question)
If adding salt to a liquid changes the nature of the liquid, then adding salt to a liquid changes what aspect of the liquid? Answer choices: - salinity - Dilution - energy - nature - Energy. - heat - ligt - reduce
(Answer)
nature

(Question)
If skin is used for protecting the body from toxins, then what organ in the body can protect you from toxins? Answer choices: - cells - gills - HIV - skin - immune - rabies - lungs - Herpes
(Answer)
skin