In which medium will a sound wave move more quickly?

Ethanol, air, vacuum, rock.

All motion is caused by force? true or false

Stoichiometry- i need with 14 and 15! an explanation would be appreciated!

Which of these describes how heat is transferred by convection* a. sunlight travels through space without the aid of fluids or solids. b. warm air rises and takes the heat with it, eventually, it cools and sinks c. air at the equator rises and sinks at the poles. d. air molecules touch the warm ground, heating them up *not conduction