Which of the following are electromagnetic waves?
a) sound waves
b) water waves
c) ground waves
d) light waves

its first and third is your answer i did the qustion the fourth isnt right

they are all solids.

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