A nail is inserted in the trunk of a height of 1 meter from the ground level after three years the nail will
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It will rust. For long time
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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.
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