Which condition is a biotic factor of an aquarium ecosystem? algae growing on the glass

amount of oxygen in the water

temperature of the water

gravel on the bottom of the aquarium

A) algae growing on the glass

Explanation:

Biotic translates to Living,

here out of all 4 options algae is the ONLY living Factor. Hence, the right answer is option A

Hope I Helped,

Pls Mark As Brainliest!

feral cats are estimated to eat tens of millions of native animals each night in australia

if you know your abc's you should be able to get your answer or just use google