Answer:
Ambient sound is an environmental sound or surrounding sounds. They use this kind of sound to give a film's scene credence(belief in or acceptance of something as true). When the sound starts to become distracting to the audience the drawback is used.
Explanation:
I do not know, i really hope you dont fail!!!!!!!!!
It's because it already knows.
It's because the camera knows that it is already dark or bright and will automatically choose a slower or faster shutter speed. You would not necessary have to fiddle with the camera settings at all. The camera will automatically set the shutter speed on its own. For example, while taking a picture in a darker corner of the room, the camera will choose a slower shutter speed.