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:
The item that does not belong:
b. el medicamento
Explanation:
The set is conformed by buildings where ill people go.
X = grupo de alumnos
4/6x = danza
1/2(4/6x) = folclórica/clásica
La respuesta es 1/3
Answer:
usando fon,plásticos,hilo,cartón etc
Explanation:
con eso vas a crear algo visualmente texturizado basicamente
