Environmental Sciences, asked by saloni6534sampla, 8 months ago

ਇਨ੍ਹਾਂ ਵਿਚੋਂ ਬਦਲਵੇਂ ਸ੍ਰੋਤ ਕਿਹੜੇ ਹਨ
1.CNG
2.bio gass
3.ਕਪੜੇ ਦੇ ਥੈਲੇ ਦੀ ਵਰਤੋਂ
4 ਉਪਰੋਕਤ ਸਾਰੇ।

Answers

Answered by hpreetkaur779

2

Answer:

I think right answer is d

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