沼气

Traditional form:

沼氣

Pinyin (reading):

zhǎoqì

Definitions:

• marsh gas
• methane CH4

Characters:

• 沼 - lake, pond, swamp
• 气 - air, gas; steam, vapor; anger

Traditional characters:

• 沼 - lake, pond, swamp
• 氣 - air, gas; steam, vapor; anger