What is wall e job on earth and how does this help wall e survive?

WALL-E's job on Earth is to clean up and compact the mountains of garbage left behind by humans, effectively turning it into small cubes for easier disposal. This task not only helps to gradually restore the planet's environment but also provides WALL-E with the resources he needs to maintain and repair himself. By finding and repurposing discarded items, he can ensure his survival and continue his cleaning mission. Additionally, his job keeps him occupied and gives him a sense of purpose in an otherwise desolate world.