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The first primitive organisms on Earth came into existence approximately ________ yearsago.A) 10,000B) 550 millionC) 3.8 billionD) 4.6 billion

User Simons
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Answer:

D

Step-by-step explanation:

I've taken a test with similar answers before & the same question.

First primitive organisms means the first organisms found. That being said, it can be anywhere from 3.5 to 4.8 billion years ago.

User Matt Lavin
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