Explain to me the Ansel Adams zone system
The Ansel Adams Zone System is a method for printing color-film photographs and determining the proper exposure for a print. It was originally developed by the famous photographer Ansel Adams, but has since become a commonly used technique in the photography industry.

The Zone System consists of 10 zones, where Zone 1 is the darkest part of the image, and Zone 10 is the lightest. The goal of the Zone System is to provide a wide range of tones in the print, from the very darkest shadows to the very lightest highlights.

To determine the proper exposure for a print, the photographer must assess the image and determine the Zone that each portion of the image falls into. They would then adjust the exposure to ensure that as many of the zones as possible are captured in the print, without losing details in the shadows or blowing out the highlights.

The Zone System can be a useful tool for photographers who want to achieve a high level of control over the final print and ensure that their images are properly exposed. However, it does require a good understanding of photography and a bit of practice to master.
tl;dr
Dividing photo scenes into light zones makes getting good exposure easy.