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No system is completely closed off from its surroundings, but some systems are almost completely closed. Which of these represents a system that is almost completely closed?

Aa metal file cabinet

Ba glass bottle

Ca small island

Dan insulated thermos

Verified Answer :

the one that represents a system that is almost completely closed is :
D. an insulated thermos
The closed system allows the user to keep the heat from liquid from dissapearing

hope this helps

holesstanham

Answer:

D. an insulated thermos

Explanation:

A closed system is a type of system that does not allow transfers in or out of the system. Therefore, the best example of this would be an insulated thermos. The fact that the thermos is insulated means that the system is designed to allow as little as possible transfer in or out of the system. In the case of the thermos, the transfer would be one of heat.