Question

you can use a leaf and use / utility

Answer 1

USE -
UTILITY
in food items spice in havan to purify air in medicines plants chemical to serve food plate to decorate room decoration piece
to make paper raw material beverages eg. tea raw material.
i hope it helps u.

Answer 2

Leaves are the most essential part of any kind of plant in our world.Although these leaves are also important for us.

Because:

1)Herbal usage:

Various herbal plant's leaves are used as a herbal medicine.

2) Spices:

Different dried leaves are used as spices for cooking.

3)Other usages:

Big leaves of the banana tree are used as natural plates for eating.It is also used to wrap different things.

And many more...