To save water they lose their leaves in order to keep the water in the tree through out the harsh weather.
transpiration
Water loss from leaves and stem is called transpiration
So they can conserve water and not freeze in the winter
The lose of water from other parts of the plant except from the leaves
in form of water vapour is called transpiration in form of water is called guttation
Plants lose most of their water by transpiration through the stomata of the leaves.
transpiration
they lose ther leaves in the fall to save water.
To avoid freezing of water in their cells.
These are the leaves of plants.
because the leaves take out more water