Below you can find the Because it's found around stagnant water & swamps this gas is sometimes called marsh gas Jeopardy Words Answer. The answer to Because it's found around stagnant water & swamps this gas is sometimes called marsh gas has 7 letters. This clue belongs to the Gases category and is part of Jeopardy Word Level 1007. If you scroll near the bottom you will find other clues and answers part of level 1007