Gk Question in Hindi Part-4

 Gk Question in Hindi Part-4

Gk Question in Hindi Part-4

GK QUIZ

परीक्षपयोगी महत्वपूर्ण samanya gyan hindi gk question के प्रश्न

Question 1 of 14

वातावर्णीय वायु में तांबे का देहली सीमा मान कितना होता है?

0.001 mg/m3

0.01 mg/m3

1.0 mg/m3

5.0 mg/m3

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👉gk questions in hindi quiz part-2

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