Son dos tipos de sustancias diferentes opuestas entre si, cada una reúne propiedades especificas, que modifican el comportamiento de las soluciones químicas se encuentran en estado:

the answer is definitely c.

the cold front replaces the warmer air at the ground level changing the wind to be breezy and denser.there is also an immediate drop in the temperature.

there are two significant figures.

c. orbital shape i hope this is correct