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marissa [1.9K]
3 years ago
10

Which of the following is NOT a freshwater ecosystem? a . a river b . a lake c . an estuary d . a stream

Biology
2 answers:
JulijaS [17]3 years ago
8 0
They are all freshwater. So the closest would be c. an estuary since it has a free connection with the sea since the sea is not freshwater.
So C.
hope this helps!
natka813 [3]3 years ago
4 0
D. A stream I’m not sure what a estuary is.
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The evidence that supports the proposition that sea floor spreading occurs from the options are the magnetic stripes and molten materials.

Harry Hess proposed the concept of sea floor spreading which further led to the development of the theory of plate tectonics.

Some of the evidences used are :

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