It provides light to a picture which reaches a sensor by shutter speed. Exposure brings out the light in pictures and is useful when you take a pic that is dark
wireframes illustrate elements of a website even though they aren't a polished and finished design, they show how a certain page on a certain website will function in the most effective and efficient way. Wireframes save money, energy, and time when they are created so they can perform usability testing much early on in the developmental process
I assume they get anxious when talking to large groups. My suggestion is to find a fix point to look at that’s behind the audience
