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Which is true according to Oparin and Haldane?
The first organic molecules were formed in the sea, from the gases in the atmosphere.
The formation of amino acids was probably complete within one million years.
The early atmosphere contained methane, carbon dioxide, and oxygen
Organic molecules eventually merged from several places on Earth.
Scientists discover the preserved remains of a woolly mammoth and want to determine its age. While examining a sample from the bones, the scientists discover the specimen is composed of 6.25 % carbon-14. Carbon-14 has a half-life of 5,730 years. How old is this woolly mammoth?
5,730 years
22,920 years
11,460 years
17,190 years
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Answer:
They are about 4000 years old. So that means they may close to 5000.
5,730 years.
Explanation:
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