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.
I have a Synesso ridge-less double basket, rated at, I think, 21 grams. This is what I use 90% of the time to make my double espresso. I have used it with as little as 16-17 grams and at most 21 grams, this is the limit. It does not fit any more than 21 grams in my experience. I also have a standard Rancilio Silvia double-basket which can only fit 18 grams maximum.