UPSC Prelims
Environment / рдкрд░реНрдпрд╛рд╡рд░рдг
Theme:
POLLUTION AND DEGRADATION
Q 1979, POLLUTION AND DEGRADATION
The most common substance responsible for pollution is
рдкреНрд░рджреВрд╖рдг рдХреЗ рд▓рд┐рдП рдЬрд┐рдореНрдореЗрджрд╛рд░ рд╕рдмрд╕реЗ рдЖрдо рдкрджрд╛рд░реНрде рд╣реИред
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