<P> A closed system is a physical system that does not allow certain types of transfers ( such as transfer of mass and energy transfer ) in or out of the system . The specification of what types of transfers are excluded varies in the closed systems of physics , chemistry or engineering . </P>
<P> A closed system is a physical system that does not allow certain types of transfers ( such as transfer of mass and energy transfer ) in or out of the system . The specification of what types of transfers are excluded varies in the closed systems of physics , chemistry or engineering . </P>
the earth is a closed system . what does this mean
the earth is a closed system . what does this mean
a physical system that does not allow certain types of transfers ( such as transfer of mass and energy transfer ) in or out of the system
a physical system that does not allow certain types of transfers ( such as transfer of mass and energy transfer ) in or out of the system