Which logical fallacy is used in the text?
If Mom didn't turn off the air conditioner, then clearly she must be too hot.

 - false dichotomy: an argument that presents only two choices when more options exist
 - appeal to nature: the assumption that natural things are always good
The text argues that Mom didn't turn off the air conditioner, because she is too hot. However, Mom may not have turned off the air conditioner for a variety of reasons. This illustrates a type of logical fallacy known as a false dichotomy.