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:
As a component of the Cold War this policy was a response to the Soviet unions move to increased communist influence in Eastern Europe Asia Africa and Latin America Containment represented a middle ground position between deténte
Answer:
una casa veraniega is a vacation home
1. Los niños están jugando
2. Yo estoy leyendo
3. Nosotros estamos comiendo
Good luck
Answer:
Traverse or Travel
Explanation:
aTRAVesar - For me, traveling invokes an image of a journey. In stories, characters will often cross something while traveling.