D)...... Hope it helps, Have a nice day:)
Answer - Cyanobacteria aka Algae that contributed in creating O2 for the atmosphere as a byproduct thru Photosynthetic.
Reason - Of course Algae make up mainly the whole world in waters and they do photosynthesis to give off oxygen in the atmosphere.
Answer:
okay I will do that since you asked do nicely :)
Interphase, lasting 18 of the 20 hours cycle
Answer:
A
Explanation:
definitely A, let me know if you need more explanation
