Question

a boy maintains an aquarium on a cold day he put a small heater inside the aquarium to make water in the slightly walk after few hours he found all the fish dead what is the reason for it

Answer 1

We know that diffusion of gases into water decreases with increase in temperature. So when he pita a heater into the aquarium the temperature rises rapidly and all the gases along with oxygen escape the aquarium thus leaving no gas for fishes to respire. This the fishes die

Answer 2

Answer:

when he put a heater in the aquarium to make water in it warm the fishes in it died . As the temperature of water increases the oxygen level decreases in the water because the molecules are moving faster than in cold water and allows oxygen to escape