The world have the same two leavies ?
Does the world have the same two leavies ?
How many different kinds of trees in the world?
How many different leavies in a tree?
Is there same leaf in a tree ?
I do not know the real answer. But I ever heared that there were no same leaf in the world.
I am not sure whether there is scientific basis for this answer.
Just like two-twin or three-twin, they look like the same.
But are they really the same? No, they are not the same.
There must be some nature is different between them.