100 POINTS HELP WILL GIVE YOU BRAINIEST
Microwave
Describe the device and its function.
What form of electromagnetic radiation does it use?
Describe the frequency and wavelength range of this type of electromagnetic wave.
Using the information above and details from your research, write a paragraph of five sentences or more explaining how the device uses the behavior and characteristics of the electromagnetic wave to function. Remember the writing tips from the lesson, and use facts and details to explain your topic sentence.
You must include citations for all reliable sources used. Include citations from three or more reliable sources.

Microwaves have frequencies ranging from about 1 billion cycles per second, or 1 gigahertz (GHz), up to about 300 gigahertz and wavelengths of about 30 centimeters (12 inches) to 1 millimeter (0.04 inches), according to the Encyclopedia Britannica. This region is further divided into a number of bands, with designations such as L, S, C, X and K, according to Ginger Butcher's book "Tour of the Electromagnetic Spectrum."

Radio waves and microwaves lie at the longer end of the spectrum of electromagnetic energy (kilometers and meters to centimeters and milimeters), while x rays and gamma rays have very short wavelengths (billionths or trillionths of a meter). Microwaves are a form of electromagnetic radiation with wavelengths ranging from about one meter to one millimeter; with frequencies between 300 MHz (1 m) and 300 GHz (1 mm). Different sources define different frequency ranges as microwaves; the above broad definition includes both UHF and EHF (millimeter wave) bands.One of the most common uses of microwaves is to heat food quickly. Microwave ovens are possible because microwaves can be used to transmit thermal energy. Radio astronomers conduct observations in the microwave region, but due to attenuation by the atmosphere, most of these studies are done using high-altitude balloons or satellites. However, perhaps the most famous observation of extraterrestrial microwaves was conducted by two Bell Labs scientists working on a telecommunications system using a large ground-based horn antenna.  

i hope that i helped

the answer is a. hope this .