Question

No system is completely closed off from its surroundings, but some systems are almost completely closed.

Which represents a system that is almost completely closed?

A.the African Safari Park

B.a tropical fish aquarium

C.the tropical rainforest exhibit at the botanical gardens

D. the bird exhibit at the zoo

Answer 1

I think it's B...

Answer 2

@aryleen.tomlinson1234

Answer 3

@furnessj Hi, I'm new to open study (Just join yesterday) can you help me with this question? I saw you help someone else out so I thought you could help me. Sorry if it's a bother