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.
This chair scale can weigh patients up to 440 pounds in 1/4 pound graduations. The beam also displays weight in kilograms. The base of the scale has two wheels that provide easy mobility and allows for convenient placement.his chair scale can weigh patients up to 440 pounds in 1/4 pound graduations. The beam also displays weight in kilograms. The base of the scale has two wheels that provide easy mobility and allows for convenient placement.