Trees inhale Carbon-dioxide and exhale _____.

Trees inhale Carbon-dioxide and exhale _____.

Trees inhale Carbon-dioxide and exhale _____.

• Oxygen
• Hydrogen
• Nitrogen
• Methane

ANSWER 

      (1)

• Oxygen

source https://sportsnewsstar.blogspot.com/2022/03/trees-inhale-carbon-dioxide-and-exhale.html