Explain the difference between diffusion and osmosis, providing examples of each.

Explanation:

Diffusion is when small molecules move from an area of high concentration to an area of low concentration .example of diffusion:include petfume filling a whole room and the movement of small molecules across a cell membrane.Whereas Osmosis is the movement of water molecules from an area of high water concentration to an area of low water concentration. examplof Osmosis: red blood cells swelling up when exposed to fresh water.

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.