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Why is a thermos considered a (mostly) closed system?
thermoses come in different shapes and sizes
different types of liquids
stayhot
matter and energy cannot enter or leave the system when the thermos lid is on
tightly
different types of hot or cold items can be stored in a thermos

Respuesta :

Answer:

Matter and energy cannot enter or leave the system when the thermos lid is on tightly

Explanation:

I got this correct on my quiz :)

Answer:

The answer is C. Matter and energy cannot enter or leave the system when the thermos lid is on tightly.

Hope this helps