Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) People Development & Environment

पूर्व-औद्योगिक युग में कार्बन डाइऑक्साइड (CO2) का स्तर क्या था?

1
200 ppm
2
280 ppm
3
350 ppm
4
420 ppm
Share: WhatsApp Telegram X

Sponsored

hivanix.in

Visit

This quiz is brought to you by hivanix.in

🌐 Web App Development

Other Tools: chatwiz.hivanix.in mmspace.hivanix.in unogame.hivanix.in

Quick Navigation

Home

Subjects

Chapters