What type of raido waves have the highest frequency and are used in radar detection ?

Radio waves at frequencies greater than 3 GHz are what we call "microwaves".

Now, recently, these days, as we learn to build communications equipment at higher and higher frequencies, a new name has been invented, for radio waves at frequencies between 30 GHz and 300 GHz.  Those are called "millimeter waves".

There are many types of radar systems, operating at frequencies from 1 GHz to beyond 30 GHz.  

Examples:

-- Various weather radars:  L-band, 1-2 GHz; S-band, 2-4 GHz;  C-band, 4-8 GHz; X-band, 8-12 GHz; K-band, 12-18 GHz and 27-40 GHz.

-- Police "speed-radar" ... 10.525 GHz.

whitney would be experiencing fear or unintentional terror

the answer is a. the yacht traveled from the dock north to the 200-meter marker in the bay in less than 5 minutes, giving the passengers several more hours to fish.

im doing peak rn so sry if its wrong