Question

what is the function of cambium

Answer 1

Vascular cambium is a thin layer of cells found in plants, separating two other types of plant vascular tissue, xylem and phloem. These cells divide and multiply with the plant's secondary growth, in which it increases in girth size.

Answer 2

Cambium is of two types :
Vascular n cork cambium

Vascular cambium helps in formation of secondary xylem n secondary phloem. Cork cambium forms secondary cortex n cork.

In total, cambium is responsible for secondary growth of plants