जीवन की उत्पत्ति किस महाकल – McqOptions

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1.	जीवन की उत्पत्ति किस महाकल्प में हुई है -
A.	प्रीकेम्ब्रियन
B.	प्रोटीरोजोइक
C.	कैम्ब्रियन
D.	मीजोजोइक
Answer» B. प्रोटीरोजोइक

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