29.1k views
1 vote
Which two processes are responsible for keeping the percentage of atmospheric oxygen at relatively constant levels ?

User Valter
by
7.7k points

1 Answer

3 votes
Respiration and Photosynthesis
User Retro Gamer
by
8.6k points

No related questions found

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