the strongest light left over from the big bang is called background radiation and was given off as which type of wave?
A. Radio waves
B. Visible light
C. Microwaves
D. Gamma rays
It would be Microwaves. The cosmic microwave background (CMB, CMBR), in Big Bang cosmology, is electromagnetic radiation as a remnant from an early stage of the universe, also known as "relic radiation".