True or false : The fruit of trees is the only part that is used by humans for food.

I believe the correct answer is false. The fruit of trees is not the only part that is used by humans for food. There are other parts of a plant that are being consumed by humans. These parts are the leaves, the roots, the stem and the like. It is not only limited to the fruit of a tree.

False - some tree's leaves are edible and so are the inner barks