Question

question 1-52 which is an example of a closed system? a motion - detecting exterior light a microwave a coffee pot clothes dryer

Explanation:

A closed - system is one that does not exchange matter with its surroundings but can exchange energy. A microwave is a good example as it contains electromagnetic energy within its enclosed space and does not allow matter to enter or leave while operating. A motion - detecting exterior light is open to the environment for air and other matter exchange. A coffee pot can have water added or removed (matter exchange). A clothes dryer has air (matter) moving in and out.

Answer:

a microwave