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:
1. tendrá
2. dirás
3. acabaremos
4. podréis
5. se enterarán
6. mentirán
7. vendrán
8. querré
9. me ducharé
10. aprenderán
11. habrá
12. se secará
13. pondrán
14. saldré
15. valdrá
Answer:
1. C. Vamos a hacer
Translation:
We are going to <u>make the bed </u>every day.
2. B. se visten, se maquillan
Translation:
Ana and Marta dress very elegant and put on makeup to go to the party.
Answer:
los peces se encuentran en el mar.
