How do you sand plywood effectively?

To sand plywood effectively, start with a coarse grit sandpaper to remove any rough spots or imperfections. Then, switch to a finer grit sandpaper to smooth out the surface. Sand in the direction of the wood grain to avoid damaging the plywood. Repeat the process with progressively finer grits until you achieve the desired smoothness. Be sure to wear a mask and eye protection while sanding to protect yourself from dust and debris.