(Q).
Evaporation of sweat uses energy, and the energy comes from body heat, and when sweat comes in contact with the skin it is cooled as the sweat evaporates. Given these facts, what evaporates from the skin among the following options: - energy - Water - solutes - h2o - pus - sweat - rain - phlegm
(A).
sweat

(Q).
Aflashlight converts chemical energy into light energy, and ajoule is roughly the energy used by a flashlight turned on for one second. Given these facts, what is converted in a flashlight among the following options: - hydrogen and oxygen - adding heat - an electron lens - hydrogen to water - chemicals to light - batteries into solar - heat into light - chlorofluorocarbons
(A).
chemicals to light

(Q).
Adding salt to a liquid decreases the melting point of that liquid, and salinity A word describing the salt content of a liquid. Given these facts, what will decrease the melting point of a liquid among the following options: - Heat energy - Dehydration - layers of fat - Physical weathering - chlorofluorocarbons - chemical changes - chemical reaction - Higher salinity
(A).
Higher salinity