Question

Diffusion ________.

Answer 1

Answer:

a. occurs when particles spread from areas where they are less concentrated to areas where they are more concentrated

Explanation:

Diffusion is the net migration of particles such as molecules

ions, or atom from a region where it is highly concentrated to a lower concentration region. Diffusion is initiated by a concentration gradient. An instance is the existence of a concentration of particles of perfume at one end of a room which eventually spreads across the room.