If half the K-40 of a rock has
decayed into Ar-40, how old is
the rock?...
Biology, 19.03.2021 18:50, aquinomelodyr
If half the K-40 of a rock has
decayed into Ar-40, how old is
the rock?
Answers: 1
Biology, 22.06.2019 10:00, oscarmasinde44
Which substance contains thylakoids? a) nadph b)atp c)stroma d)chloroplast
Answers: 2
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