All countries require the labelling of GMO's on food being sold.

true

false

True :D

labeling of GMO food is mandated in at least 64 countries, including most European countries, China, Russia, Japan, Brazil, South Africa, and Australia

Explanation:

the electromagnetic spectrum includes, from longest wavelength to shortest: radio waves, microwaves, infrared, optical, ultraviolet, x-rays, and gamma-rays.

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."