The correct answer for the question that is being presented above is this one: "oxygen became available from cyanobacteria." About 1.2 billion years ago, eukaryotic and multicelled organisms evolved because oxygen became available from cyanobacteria.
<u>Question</u><u> </u><u>:</u><u>-</u>
What is considered a pull factor for potential immigrants to Canada?
<u>Answer </u><u>:</u><u>-</u>
<em>B) Excellent employment opportunities</em>
<u>Reason </u><u>:</u><u>-</u>
Of course people will immigrate to a country only if they get any benefits. Here more employability options & more salary is considered a pull factor for potential immigrants to Canada.
The moisture is the same throughout the air mass.
Well there's is frozen sea weed and there is plankton and hair grass
Answer:
The last two options I'm pretty sure
Explanation: