Question

Which of these is an abiotic factor of an aquarium ecosystem?

A.
algae growing on the glass

B.
gravel on the bottom of the aquarium

C.
plants growing from the gravel

D.
fish swimming in the water

Answer 1

@Donblue22

Answer 2

All the Non-Living components of an ecosystem are considered as abiotic factors. Among the options given only one is non-living. What do you think should be the correct answer now?

Answer 3

It's B