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:

3 0

3 years ago

Arrange in the correct order<br><br> película / ver / en / Jorge y Carlos / pensar / cine / una / el

riadik2000 [5.3K]

Answer:

Jorge y Carlos pensar ver una pelicula en el cine

Explanation:

6 0

3 years ago

Stanley's mother owns a stationary shop. Stanley helped his mother pack 319 pencil cases into packets of 7. In the end, 25 packe

cupoosta [38]

Answer: 20.5714285714 packets (21 packets rounded)

Explanation: (319/7)-25

6 0

3 years ago

Read 2 more answers

I think this is how you spell it, I need help spelling Como te llamas, I don't know how to spell it correctly, I have a strict s

Nataliya [291]

Answer:

yes, that is the correct way of spelling it.

Explanation:

(I know some spanish)

4 0

3 years ago