In preparation for a blizzard, a city dispatches a crew to spread salt on the street surface of the bridges around town. the salt is spread on the streets because it will likely change the freezing point of water from to

the mantle

explanation:

earth is divided into three layers: the crust or the outermost layer on which we live; the underlying, middle layer - the mantle - and the core (the innermost layer of earth).

elements make up everything, and they combine to make compounds.

the answer is c