Question

1. correct the text by inserting one comma.

1. oh no the widespread use of antibacterials is causing resistant bacteria to spread.

Explanation:

The phrase "Oh no" is an interjection at the start of the sentence, which should be set off from the main clause with a comma to separate the introductory emotional expression from the core statement.

Answer:

Oh no, the widespread use of antibacterials is causing resistant bacteria to spread.