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:
Answer:
to William Morningstar's home
enciendas
porque el quiere que no encienda en ese momento el Horno
7
diegos mother parent is aproxiatelyy 7 years old... idk the answer but i needed to answer a question
