Daily GK Quiz Game 871
Test #
871
[
21-May-2026
]
1.
Argon is the third most common gas in the Earth's atmosphere, at 0.93%. This gas is generated due to decay of which among the following isotopes in the Earth's crust ?
a.
K-40
b.
Ca-40
c.
Ca-48
d.
K-41
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