Heyy!

here u go with ur answer!!

The strength of the tree lies in its roots, which the poet asks to snap out in order to kill the tree. Thus, the phrase “the strength of the tree exposed” refers to the roots of the tree being exposed to sunlight and air.

Hope it helps u

｡◕‿◕｡

The strength of the tree exposed means,when we pull out the roots,we will come to know how strong a tree is.