Read the extract given below and answer the questions that follow :
What does he plant who plants a tree?
He plants a friend of sun and sky;
He plants the flag of breezes free;
The shaft of beauty, towering high;
He plants a home to heaven anigh;
For song and mother-croon of bird
In hushed and happy twilight heard---
The treble of heaven's harmony---
These things he plants who plants a tree.