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.
Due to variations in monitor displays, actual colors may vary. Fabric 7 oz. poly/cotton twill Our medium weight poly/cotton blend is a twill weave and weighs approximately 7 oz. per square yard. It is color fast and has a 2-3% crease resistant finish.Our light weight poly/cotton poplin is a plain weave material that weighs approximately 4.5 oz. per square yard.ue to variations in monitor displays, actual colors may vary. Fabric 7 oz. poly/cotton twill Our medium weight poly/cotton blend is a twill weave and weighs approximately 7 oz. per square yard. It is color fast and has a 2-3% crease resistant finish.