railway RPF Constable Mock Test Series 2024 General Knowledge Ecology and Environment Environment Problems

નીચેનામાંથી કયું હરિતગૃહ વાયુ નથી?

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જળ બાષ્પ
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સપાટી સ્તરીય ઓઝોન
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નાઈટ્રસ ઓક્સાઈડ
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હિલીયમ
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