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.
1 A folding Mat is easy to clean. 2  Unlike many other cheap folding mats available, our folding mats are constructed of durable closed 18 oz vinyl fabric.3  This means that no liquids can penetrate the surface of the mat and that the folding mat will be extremely resistant to punctures and tears.hese mats are covered with a durable vinyl mat covering and have a Velcro tab system on all 4 sides so that multiple mats can be connected together to cover large areas. Material â Crosslink Polyethylene foam encased with 18 oz vinyl fabric. Size â Each mat is 4â x 8'.