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, IV
II, III
I, III

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Basic General Knowledge
In 1943, Franklin D. Roosevelt, Winston Churchill and Joseph Stalin met at Teheran primarily

for creating an effective instrument for maintaining international peace
to work out a common line of action against Japan
to discuss the strategy to be adopted by the Allies to invade Germany
to consider a common plan of action by the Allies forces against the axis powers

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