Answer:
It is a Electromagnetic Wave, which does not need a medium to travel through, so radio waves travel through space or a vacuum.
Explanation:
Types of Electromagnetic Waves
Radio Waves. Radio waves have the longest wavelengths of all the electromagnetic waves. ...
Microwaves. Microwaves are shorter than radio waves with wavelengths measured in centimeters. ...
Infrared. Between microwaves and visible light are infrared waves. ...
Visible light. ...
Ultraviolet. ...
X-rays. ...
Gamma rays. ...
The answer is D. They formed trading posts along the Mississippi River.
Answer:
To open the land for white settlers
Answer:
yes! what do you need help with? please post your question.
Explanation: