How have narrative feature films incorporated into themselves documentary filmmaking techniques?

Which lines from the weary blues suggest that the speaker is impressed by the musician?

Sound waves can travel only in the aira. trueb.false

In this unit, it is mentioned that in order to enter into the field of photography, most jobs require at least a high school degree. since there is a possibility you can attain one of these jobs with just finishing high school, why do some people get an associates or bachelor’s degree?