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TOPIC: biology (environmental biology)

biology (environmental biology) 4 years 3 months ago #8638

yathanai yearsku mun valimandalam O2 gasaal poorana aakiramibuku ullaanathu?
1.2500 million years before
2.1000 million years before
3.480 million years before
4.420 million years before
5.630 million years before
plz answer it :( :( :(
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