The exposure triangle is a common way of associating the three variables that determine the exposure of a photograph: aperture, shutter speed, and ISO.
The blurriness depends on the shutter speed. The faster the lens opens and closes, the less light that gets into the lens, which will make the pictures foreground and background blurrier.
The aperture adjusts the focal length.The focal length dictates where in an image you are focused on. For instance if you take a picture a picture with high aperture the camera will focus more further out.
The detail in a picture depends on the ISO. The lower the ISO the more higher quality pictures you will get with lots of detail however if you put the ISO high the picture would be more fuzzy and not have as much detail.
I put the aperture high in this pic but the iso down aswell so it makes it really blurry and not much detail
In this picture i put the aperture up so that the front is more in focus than the back, so it gets more blurrier near the back