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.
The strength of the board is measured in two ways, the edge crush test and the burst test. To test the edge crush strength, place a piece of cardboard on its edge (i.e. the flutes running vertically) and see how much weight it holds. A standard panel of corrugated cardboard can hold 32 lbs. The burst test sees how much pressure (pounds per square inch) is needed to bust a hole in a panel. A typical piece of corrugated cardboard can hold 200 lbs. per square inch.