Question

what is tree and it main function

Answer 1

The main function of theheartwood is to support the tree. The xylem, or sapwood, comprises the youngest layers of wood. Its network of thick-walledcells brings water and nutrients up from the roots through tubes inside of the trunk to the leaves and other parts of the tree.

Answer 2

hey dear.....!!


TREE : woody perennial plant, typically having a single stem or trunk growing to a considerable height and bearing lateral branches at some distance from the ground.

-Harvest
Perhaps the most immediately obvious function of a tree is to provide a harvest. Many of the trees in a permaculture design will be fruit trees for this reason.
-Mulch
When leaves fall from the branches of trees, they are just starting the next stage of the cycling of nutrients through an ecosystem. 
Prunings
When trees need to be pruned, perhaps to thin out the branches and allow wind or rain to move through them.

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