Question

examples of diffusion in our daily life

Answer 1

Uncharged small molecules can diffuse through cell membrane.
Perfume - perfume gas molecules diffuse into the air when put on so you can smell it.
Air freshener/deodorant - same concept as above.
Drop a drop of ink into a glass of water - the ink would diffuse
Teabag diffusion - tea leaves diffuse through teabag to give the water its colour and taste of tea
Cigarette smoke - it diffuses into the air and spreads throughout the room