railway RRB JE (CBT I + CBT II) Mock Test 2024 General Science Biology

श्वसनादरम्यान, यीस्ट ______ वायू तयार करते.

1
नायट्रोजन
2
हायड्रोजन
3
कार्बन डायऑक्साइड
4
मिथेन
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