Plywood is usually made from layers of flat sheets of wood. It is a type of composite material which makes use of layers of veneers (thin slices) of wood glued together. A sheet of plywood consists of many layers of veneers and is very strong. Wood is a renewable resource.
It lasts forever and can be made into many useful products. However, it is easy to cut. If you need to change a table or desk, you can simply rip it out. But what happens if you need a larger piece of plywood? It is not possible to cut it out by hand and use a hacksaw.
There is another problem with using plywood. It is difficult to sand the edges of the board smooth. Because of the ply wood edges, it is best to apply glue on them so that they will not peel off. Also, it is not possible to paint plywood because it needs to be sealed.
As plywood ages, it starts to warp. It can also get water damage and mold. Plywood is strong but it has its disadvantages. It is not as nice looking as MDF or engineered wood. Also, because it is made from solid boards, it is less flexible than MDF. It is also much more expensive than MDF and engineered wood.