Microwaves

• Micro waves have the 2 longest wavelength and 2 shortest frequency.
• There are 2 types of radio waves, the ones that can't be absorbed by water molecules and the ones that can be absorbed by water molecules.
• Microwaves (which aren't absorbed by water) can be used for communication between satellites.
• Microwaves (which can absorbed by water) can be used to heat food. This is because most of our food has water in it, so energy from waves is absorbed by the water.
• Microwaves are only harmful in high quantities.