8) Which compound contains polar covalent bonds?
a) MgCl2
b) BaF2
c) CHE
d) SiO2
e) O2

the answer is learned

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

the answer is c

answerambulatory;

if the temperature drops and becomes cool

then the atmosphere can be freezing as the water vapor in the air is at maximum (100%) and can be severely cold

also can be snowing lightly as the moisture in the air will start to solidify

and btw this is not chemistry but