Question

The principal characteristic that determines whether an aquatic ecosystem is classified as marine or freshwater is _______.

a.
surface area
b.
water depth
c.
temperature
d.
salinity


Please select the best answer from the choices provided

A
B
C
D

Answer 1

for me the answer was d - salinity

Step-by-step explanation:

Answer 2

im gonna go with b because thats what i got for my quiz