Yes, snakes breathe and require oxygen to survive, just as all aerobic organisms do.
The unique, cylindrical body of the snake makes the anatomical structure and arrangement of their organs quite interesting.
Snakes have 2 lungs, just like humans, but how can they fit?
Rather than being side-by-side, snakes hold the organs that are in pairs (such as lungs) one in front of the other. This allows them to more easily fit inside the body.
Although snakes have 2 lungs, one of them (the left one) is much smaller and often does not function at all. This smaller lung is considered to be a vestigial organ, and some snakes are missing it completely.