Basic General Knowledge
Nowadays many novel chemicals are being synthesized termed as xenobiotics. The unique feature of these is what they are I.biodegradable II.non- biodegradable III.pose on environmental threat IV.they are environment friendly

I, III, IV
II, III
I, III
II, III, IV

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Basic General Knowledge
The main purpose of ASEAN (Association of South-East Asian Nations) is

to provide collective defence and economic cooperation
None of these
to accelerate economic progress and maintain economic stability
to maintain higher standards of living among member nations

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