Answer:
Three ways by which harmful substances could contaminate food are physical contamination, chemical contamination and biological contamination.
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I feel it’s a bit at the same time u didn’t provide enough information cause we didn’t read the story
Wdym??? A caption is a text below an image, so if you are talking about something else add a picture
Answer:
Browsing
Explanation:
It is browsing because when you start research, you aren't supposed to browse.