Which of these create radio waves?

changing electric and magnetic fields applied at right angles

longitudinal waves traveling along the horizontal direction

compressions traveling along the vertical direction

transverse waves traveling at different speeds

The one that help create radio waves is :
Changing electric and magnetic fields applied at right angles

Radio waves are transverse wave, which means  that the oscillations occurring perpendicular to the direction of energy transfer

hope this helps

Answer: buoyancy forceexplanation: in simple terms, the principle states that the buoyancy force on an object is equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational acceleration, g. this is also known as upthrust.