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

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Basic General Knowledge
Free market is

a condition in the international market where nations do not impose customs duty or other taxes on import of goods
market where the price of a commodity is determined by free play of the forces of supply and demand
ports that are exempted from payment of customs duty on articles of commerce, primarily to encourage tourism
None of these

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