Help for the last two please

Gamma waves travel faster than radio waves; microwaves have a higher frequency and less energy.

Explanation:

Although radio waves have a longer wavelength, gamma waves come in more frequently making them faster.

Microwaves tend to have a state of a non-ionizing material which happens to have a higher frequency but to the point that microwaves produce heat to vibrate strongly, it creates less energy than radio waves.

the dissolution of polymer can be thermodynamically described in 2 steps.