You are presented with the quiz "a blazingly high-tech method can be used to kill existing microorganisms in what?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "irradiating food can be used to kill existing microorganisms in the food" and "food irradiation is blazingly high-tech". 

So, what's the best answer to the question?


 

     food      