Dijo
I tell them the truth
It’s incorrect, there shouldn’t be an a it’s just un gato
Scientists think that algae first evolved approximately 2.7 billion years ago, and soon after this oxygen began to exist in the atmosphere. Photosynthesis by primitive plants and algae released oxygen, which gradually built up in the atmosphere.
Explanation:
Hey!! so it says you have completed your lesson! Other than that it says they will give you feedback on your home description (i’m assuming that’s an assignment) and you have to just read what they said about it and use their suggestions to make your home description better than before!!
