Given the question: You are presented with the question "Using radioactive gamma ray sources, existing microorganisms in food can be what?" and the following answer choices: - killed - cancer - organisms - tiny - dangerous - extended - colored - resized Now knowing that irradiating food can be used to kill existing microorganisms in the food and how Irradiation Works Food is irradiated using radioactive gamma ray sources, usually radioactive cobalt-60 or , choose the best answer.
The answer is:
killed