Question

A small nail is inserted in the trunk of a tree at a height of 1 metre from the ground level. After 3 years the nail will:

• A. Move downwards
• B. Move upwards
• C. Remain at the same position
• D. Move sideways

Answer 1

The correct option is C Remain at the same position

A small nail inserted into a tree trunk will remain in the cork cambium of the trunk. The verticle growth in the tree will happen only at the apex where the apical meristems are present. Therefore on the tree trunk, we would see an increase in the size of the girth. When you look at the tree from the longitudinal section, the relative position of the nail will be the same.