Question

the cell wall of sclerenchyma tissues are thickened due to position of material​

Answer 1

Answer:

Lignin is the deposited material in sclerenchyma.

Answer 2

Answer:

Sclerenchyma tissue, when mature, is composed of dead cells that have heavily thickened walls containing lignin and a high cellulose content (60%–80%), and serves the function of providing structural support in plants. Sclerenchyma cells possess two types of cell walls: primary and secondary walls.