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.
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.There i â¦ s no such thing as OSB plywood! 82 lbs.   5/8 thick standard drywall weighs 3.4 x 0.625 = 2.2 lbs per sq. ft.   4' x 8' x 5/8 thick sheet weighs about 70 lbs.   4' x 10' x 5/8 thick sheet weighs about 88 lbs.   4' x 12' x 5/8 thick sheet weighs about 105 lbs.