system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why don't we just dump our garbage into a magma pit?
gpt
For starters, there aren't many magma pits in the world. It's a lot easier to dump your garbage in a place no one cares about that's maybe 50 miles away, as opposed to one 2000 miles away. Most of those pits are also small, and would be overfilled quickly. We throw out a lot of trash.

Secondly, many products create hazardous or toxic chemicals when burned. When we burn trash using an incinerator, the trash needs to be separated so that hazardous products are not burned.