its an open system b/c when it gets started it releases heat and also it takes lot of fuel (NED prof.)
Early Earth was an open system because energy and matter such as light energy and meteors were bombarding the Earth.
Purpose of the servo pressure regulator system
One open, one closed.
open
The opposite of the adjective closed is open. The opposite of the verb closed is opened.
The light bulb is a closed system: no mass transfer.
Closed System
Closed System
closed.
closed system
Amphibians have closed circulatory system Closed
closed system
closed circulatory system
Odviously-it's-a-closed-system-what-really-come-in-and-out-of-the-earths-crusts...
A battery-operated wrist watch is a closed system. A wind-up wrist watch is an open system.
closed
closed!