Fish can't alive in air. How many they breathe while remaining in water ?

How many times do you breathe in a minute?

How does a fish breath?

How does frog breathe in land and in water ?

Why can't fish live on land ?

How many molecules are there in 18 grams of water?

How much air do you breathe?

What is meant by hardness of water? How many types are there?

How marine fishes cope up with the salinity of marine water?

The fish belongs to the species Catla catla living at a given time? How do the fish living in Antarctic waters manage to keep their body fluids from freezing ?

How many water molecules present in Epsom salt.