Asphalt driveways are typically less expensive than concrete, costing a minimum of about $2.50 per square foot. An asphalt driveway might last just 20 years; however, while a concrete driveway can last more than 30.
Semipermeable membrane. The diffusion of water through a selectively permeable membrane is called osmosis.This allows only certain particles to go through including water and leaving behind the solutes including salt and other contaminants. In the process of reverse osmosis, thin film composite membranes (TFC or TFM) are used.
Osmosis is the movement of water through a membrane. A solvent, which is often water, from a higher water concentration to a lower water concentration across a selectively-pe â¦ rmeable membrane.=) [my answer is better.onfidence votes 87. It means the diffusion of fluids through a membrane. Oxygen is diffused into your blood through the alveoli walls by osmosis. The difference between diffusion generally and osmosis is the permeable membrane. osmosis is a type of diffusion.