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:
Mexico has a capitalistic government
Explanation:
It is the same government as United States
Answer:
POR and PARA are prepositions often confused.
POR expresses the cause of something, it gives an explanation or reason.
PARA refers to the result of an action, it shows when a subject or object receives the result of an action expressed by the verb, that is <u>aimed at something or somewhere.</u> It is also used to refer to the <em>complemento indirecto.</em>
Explanation:
1. Ricardo y Emilia trajeron un pastel para su prima.
2. Los turistas llegaron a las ruinas por barco.
3. (Yo) Tuve resfriado por el frío.
4. Mis amigas ganaron dinero para viajar a Suramérica.
5. Ustedes buscaron a Teresa por toda la playa.
6. El avión salió a las doce para Buenos Aires.
Mi hermana es un grande diva
