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.
Asker's rating. Report Abuse. A 1/4 plate weighs 40.8 pounds and 3/4 plate is 122.39 pounds. A simple way to calculate the weight of carbon steel plate is to multiply the thickness x side x side x 0.284, which is steel density in pounds per cubic square inch.est Answer: 0.070833 lbs/square inch or 10.2 lbs per square foot. A 1/4 x 24 x 24 plate would weigh about 40.8 lbs. Source(s): draco4843 | Â· 7 years ago.