Question

Q2. Paheli made a deep mark in the trunk of a tree at a height of 1 metre from the ground level. After 4 years, where will the mark be present? Give reason to support your answer ​

Answer 1

Answer:

When a nail is inserted in the trunk of a tree at a height of 1 metre from the ground, even after 3 year the nail remains at same level. It does not moves upwards as the apical meristem responsible for growth (length) is present in the apices only and lateral meristem responsible of increase in girth will lead to no change in length.