Question

Three nails were inserted in the trunk of a tree at a height of 2 meter from the ground level and at a distance of 2 cm from each other. After 5 years the nails will 1 point move downwards move upwards move sideways remain at the same position

Answer 1

Explanation:

The plant grows in length by apical meristems. Apical meristem is present on tip of root and shoot. A nail is inserted in trunk i.e., permanent tissue which does not divide.