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:
habia, desperte, oye, baje, veia, llamo, llegaron, apagaron, subio, rescato, murio. hope this helps :)
Answer:
First battle of ball run
Mal or Bien
Good or bad in he correct conjugation
