What is the definition of entropy?
a system that can exchange both matter and energy with its surroundings
a measure of the overall disorder of a system
a quantity that measures the overall spontaneity of a reaction
a process that will proceed without continuous external influence

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Acontrol during an experiment. might change remains constant does not exist does change

Harry lives in a city, and he has a lung condition known as asthma. on certain days, harry has to stay inside because pollutants in the air make it difficult for him to breathe. which of these pollution sources are nonpoint sources that might bother harry if he goes outside? choose the two that apply.