Given that a battery-powered digital watch runs without help from the outside environment, it could be described as a relatively closed system, after the battery is in place.

Question

Quizplus · Accepted Answer

A battery-powered digital watch contains all the necessary components (including the battery) to run without requiring any input or output from the environment. Once it is assembled and the battery is inserted, it can operate independently as a closed system.

Given That a Battery-Powered Digital Watch Runs Without Help from the Outside