As trees give us oxygen, we can't live without trees. Each and every tree is useful to us. Like neem tree gives us medicine, mango tree and other fruits tree also give us fruits, ETC. They also spread shade for the sleepy animals. They gather birds among their boughs which make us feel very happy. They give us wood to make our houses.And in spring they give us buds of green. And if there will be no trees left, we will be left alone. So start saving trees as well as plant a tree.
There is a poem on trees-
TREES ARE THE KINDEST THINGS I KNOW,
THEY DO NO HARM THEY SIMPLY GROW,
AND SPREAD A SHADE FOR SLEEPY COWS,
AND GATHER BIRDS AMONG THEIR BOUGHS..