Because the sun is above the tree and its light is the energy that causes the leaves to change.
because the older you get the colour changes. it is the same for some children as their hair colour changes.
green
Owls vary on their colour due to environmental changes. They change their colour to match or camouflage into their environment. For example, If they were spotted in the trees by other nocturnal predators then they would camouflage therefore surviving.
it changes to green
Trees grow from the top, with new growth occurring at the tips of branches and the top of the tree.
Depends on the colour it changes...
It can, yes.
Chameleon?
the lanterns
the leafs on a pine tree don't change colour they stay green all year but the rest of them change colour like the hardwood trees
A lot of people think a chameleon changes its colour to blend in with its surroundings but that is not true. It changes its colour because of its mood.
The Chameleon is known for its ability to change colour. Other lizards are capable of slight colour changes - but not as spectacular as the Chameleons.