26.5k views
4 votes
Which of the following is not a source of air pollution related to human activities

2 Answers

3 votes
There are many answers to your questions. It can be gas called Methane, and even sea-coal.
User Orbital
by
9.4k points
4 votes
D. Radon that should be right
User Walter Sun
by
8.1k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.