It is called the diction.
Angst, in writing, is like a dark story. One that has a sad, dark, etc. plot to it. On the other hand, tone is how a writer feel towards a topic.
Answer:"chemicals"
-and-
"disease"
-and-
"obesity"
Explanation:Negative connotation refers to a bad feeling that we experience when we hear a certain word or phrase .
Provided that this writer wants people to actual dislike and dissociate themselves from conventional grown foods these words adds to that as they will give people a bad feeling about such foods.
<span>anything ...................</span>