AP BIOLOGY

Detailed explanation-1: -Diffusion: Perfume particles mix with the particles of air. Due to diffusion, the particles of smelly gas are free to move quickly in all directions. So, The fragrance of perfume spreads in a room.

Detailed explanation-2: -Smells travel through the air by a process called diffusion; air particles, and the odour particles within the air, move freely in all directions. They are constantly moving and eventually they spread out through the air around them.

Detailed explanation-3: -Complete step by step answer: If a perfume bottle is opened at one end of a room, the odor will quickly be detected on the other side of the room. The reason behind this is diffusion. The gas present in the form of perfume is at higher concentration inside the bottle.

Detailed explanation-4: -Odour spreads from one room to another by the process of diffusion. Diffusion is the movement of molecules or atoms from a region of their higher concentration to a region of their‘ lower concentration.

Detailed explanation-5: -Being a compressed chemical composition, once the perfume or cologne is sprayed into the air, it coverts into a gas and its particles are mixed with other air particles. These particles very quickly circulate the room while the perfume spreads.