which abiotic factor separates marine ecosystems from river ecosystem?

A)sunlight
B)salt
C)sand
D)algae

10 answers

I'll be glad to check your answer.
The answer is A)
No. River and ocean ecosystems both get sunlight.
Is the answer B)
Please use the same name for your posts.

Yes. The abiotic separating factor is salt.
Is the answer D)
So the answer is b
The answer is B
Is it abc or d
B