They spread outward in every direction to regions where they are in low concentration. Your nose is able to detect the smell of the cologne or perfume even if you are quite a distance from the bottle that has been opened. Diffusion occurs in all states of matter: solid, liquid, and gas.
enclave, exclave - An enclave is a group or area different from the surroundings, a secured area within another secured area, from Latin clavis, key; an exclave is the same thing, but usually describes a portion of a country separated from the main part and surrounded by politically alien territory.
E) Pacific Northwest, Plains states 13. An exclave is A) A territory occupied predominantly by one ethnic group B) A territory controlled by another state C) A territory that is unclaimed by other states D) A territory belonging to one state that is separated from it by the territory of another state E) A territory that is completely inside another state 14. Ethnic identity for descendants of European im-migrants is primarily preserved through