How i can delete an answer in the ???if that is not usefull

In concrete mixers what seems to be the speakers feeling about the concrete mixers

This lesson explored netiquette as well as the negative implications of internet use, such as privacy invasions and cyberbullying. what are three online practices that you will change after this lesson? first, list the three things that you'd change. then, describe the new behaviors and explain your reason for adopting them.

Question 12(multiple choice worth 2 points) the arrangements of elements in a photograph is called aperture focus composition framing