Question

which aspect of the national geographic video is unique to video?
a. specific details are given about the force of the storm.
b. viewers can watch the effects of the wind and water as they listen to the narrator.
c. viewers can choose to review additional materials and resources.
d. the narrator provides an explanation about the events of hurricane katrina

Explanation:

Video combines visual and auditory elements. Option B describes the unique ability of video to let viewers watch visual effects while listening, which is not possible in the same way in other media like text - only or audio - only formats.

Answer:

B. Viewers can watch the effects of the wind and water as they listen to the narrator.