How can you say fishes living in water having heavy metals in their bodies?

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 can you say that a tree is living thing even though it doesn’t move?give reasons

How can you say that mouth is a munching machine?

How can you say forest is a habitat for people?

How can you say that mouth is a munching machine ?

How can you get half a water molecule ?

Can you see it in the water ?

Answer the following question : How can you say that a tree is living even though it doesn't move?

How can you say that forests are lungs of our earth ?