Which is not a form of electromagnetic radiation? gamma rays, gravity, visible light, radio waves

ANSWER:

Gravity is not a form of electromagnetic radiation.

EXPLANATION:

The electromagnetic radiation is the radiation caused by the movement of atomic particles. Electromagnetic radiation has the distinct frequency, wavelength and energies. But gravity is the "pull force" that tends to attract every object towards its center. To be an electromagnetic radiation, it must be the form of energy but gravity is not any form of energy instead it is a force.  

Water flows along the east coast and across the western tropical pacific towards south america, while they both are directed towards that way,  el niño does not directly affect the southern flow of water along the coast. 

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