Pick the odd one out from the following:
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Which of the following is not a greenhouse gas?
Which of the following is NOT a radioactive element?
A commodity market has a _________ structure, if there is one seller of the commodity, the commodity has no substitute, and entry into the industry by another firm is prevented.
How many versions of each trait will be there in each child as per the rules for the inheritance of traits?
What is the effective discount (in %) on two successive discounts of 20% and 10%?
How many medals in all did India win at the Rio Olympics 2016?
Which of the following periodicals is not correctly matched with its editor?