Classroom is a closed compound word.
"Show" is open, "and" is closed. O- is open, -pen is closed. "Closed" is closed.
Both open syllables.
Both closed.
Closed
Classroom is a closed compound word.
The light bulb is a closed system: no mass transfer.
Closed System
closed.
Closed System
closed system
closed system
Amphibians have closed circulatory system Closed
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!