What leaves of palm trees are used for?

Resin derived from sal tree are used for making________

Which leaves of plants man uses for his livelihood?

Which leaves are used for fuel?

In the leaves, veins are useful for

On winter morning we see that water deposited on leaves of grass or on leaves of sall trees as dew drops. How does this water come there?

What kinds of trees are observed in the Dooars and Terai forests?

Which leaves are used to make shed?

Name oldest tree.

Trees of a jungle are felled-

Age of a tree can be estimated by