What is the difference between osmosis and diffusion?

osomsis is the movement of molecules from an area of low concentration to an area of high concentration; diffusion is the opposite.

diffusion is the movement of water across a membrane; osmosis is the movement of molecules from a higher to a lower concentration, with or without the presence of a membrane.

osmosis is the movement of water across a membrane; diffusion is the movement of molecules from a higher to a lower concentration, with or without the presence of a membrane.

diffusion is the movement of molecules from an area of low concentration to an area of high concentration; osmosis is the opposite.

The correct answer is osmosis is the movement of water across the membrane;diffusion is the movement of molecules from a higher to lower concentration with or without the presence of membrane.

Explanation:

Diffusion and osmosis are the two most important process of passive transport.Both diffusion and osmosis helps in the movement of water molecules from high water concentration region to region of low water concentration until equilibrium in both sides is  reached.

              Osmosis needs the presence of a semipermeable membrane to occur.

answer: ice crystals in air

the water from the water body or another source of water gets evaporated as water vapor as an effect of heat on water. these water vapor rises in the upper layers of the earth atmosphere under high atmospheric pressure. the atmospheric pressure of these water molecules starts to decrease due to the effect of cold air. the invisible water vapor condenses into visible water droplets and ice crystals.these ice crystals and water droplets being less denser than the surrounding air floats on air as clouds.

the answer is c a tornado