Explanation:
Radio waves, like all__electromagnetic _____ radiation are fundamentally different than _mechanical_______ waves such as sound. Even though
they share many similar properties, sound waves require a_medium____,while__radio____waves do not. Sound is the___vibrations___ of molecules and caused by pressure waves. There are no molecules in a __vacuum___
So, sound cannot travel through a vacuum or outer space. Radio waves are electromagnetic waves. They are the vibrations of _electric____ and_Magnetic_______
fields and require no matter to vibrate through. So, radio waves__can___
travel through outer space or a vacuum.
Mechanical waves are simply waves that causes oscillation of a body to transfer energy through it.
Sound and electromagnetic waves are both mechanical waves. Sound is propagated as a longitudinal wave parallel to the source.
Electromagnetic waves are transverse waves that are propagated perpendicularly away from their source.
Sound cannot be propagated in a vacuum but electromagnetic waves are. They do not require a materials medium to be transported through.
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Answer: I believe it is C.
It is a trait that can be distinguished from an individual. Such as hair color, eye color.
The shape of the orbit, the distance of the orbit from the Sun, and the angle of the rotational axis.
C. bicycle is your best answer
a bicycle has 2 wheels, and they are connected together through a frame and and has axles
hope this helps