Exposure is like when you stand outside in the sun. The sun’s light touches your skin and makes it warm. The more time you spend in the sun, the more exposed you are to its light and warmth. If you stay too long, you might get a sunburn, which shows you had too much exposure.
Another way to think about exposure is like when you open a window in your room. When the window is open, fresh air comes in and you can smell flowers or hear birds singing. The room is exposed to the outside world. If you close the window, the room is no longer exposed to those things.
Exposure can also be like when you watch a movie on a screen. The screen shows pictures and sounds, and you are exposed to the story and the characters. If you watch a lot of movies, you learn about many different stories and people. So, exposure is about how much you see, hear, or feel something, just like being in the sun, opening a window, or watching a movie.