For photosynthesis, plants need water, carbon dioxide, and sunlight (or photons). The water provides electrons, the sunlight provides the energy, and CO2 provides a carbon sou â¦ rce.
Trick question! A single sheet of OSB weighs about 1.5 lbs per sf or 47 lbs, assuing you are asking about 7/16 thick, not 716.One sheet of plywood weighs a bit more.he weight of treated plywood will depend on the size of the  plywood. A 4 x 8 1/2 inch piece of treated plywood will weigh an  estimated 50 pounds.
how much weight can 1/2 plywood support (shear loading) (self.DIY) submitted 3 years ago * by dtg_. I'm looking to build a hangboard for climbing and I have plenty of pieces of 1/2 plywood laying around. I'm wondering if this would be strong enough to hold a person's weight, because it sounds like people use 3/4 plywood.