The periodic table has_ groups that go_ and _

C) the increase in atmospheric pressure pushes the walls of the balloon outward thus making it  is the answer.hope i you.

The main types of electromagnetic radiation. radio  waves have  the lowest frequencies  and  longest  wavelengths, while gamma  waves have highest frequencies  and shortest wavelengths. the wavelengths vary across the electromagnetic spectrum from about 10–15 m to more than 104 m.hope it !