Biology · Biology
औसतन आयुष्काल में मानव दिल लगभग कितनी बार धड़कता है?
- 12 अरब बार✓
- 22.5 अरब बार
- 31.5 अरब बार
- 41 अरब बार
सही उत्तर देखें
2 अरब बार
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