The presence of cambium in the vascular bundles provides them the ability to

What does the following figure represent?

If a nail is driven into the trunk of a mango tree at a height of $2 \ m$ above the ground,what will be the height of the nail after $5$ years?

What is the inner bark primarily composed of?

During secondary growth of plants,stem phellogen cuts off cells on both sides. The outer cells get differentiated into ...$A$... and the inner cells get differentiated into ...$B$... cortex.
Choose the correct combination of $A$ and $B$ with reference to the above statement.

The light-colored outer region of the wood is known as ..........