When resolving relative URLs, the browser's first step is to strip everything after the last slash in the URL of the current document. If the current document's URL ends with a slash, then the final segment (the "file") of the URL is null. If you remove the final slash, then the final segment of the URL is no longer null; it is whatever follows the final remaining slash in the URL. Removing the slash changes the URL.When they receive a request that is missing its final slash, web servers cannot ignore the missing slash and just send the document anyway. Doing so would break any relative URLs in the document.

Slash and burn cultivation has destroyed habitats and ecosystems. It  reducing the variety of species. The removal of trees also speeds up soil erosion, which adds sediment to rivers and increases the severity of seasonal flooding