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.
Specifications: 1  Power-coated steel single-ladder stand. 2  Contoured mesh folding seat with backrest. 3  Weighs 95 lbs. and holds up to 300 lbs.  18. W x 16 D seat size, 24 W x 25.5 D platform 1  size. Includes Full-Body Fall Arrest Harness System and all necessary hardware.