Opportunity costs exist because
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Which of the following statement(s) is/are INCORRECT regarding Phosphorus?
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Which of the following gases is heavier than oxygen?
In the following question, four words are given out of which one word is correctly spelt. Select the correctly spelt word.
In the following question, out of the given four alternatives, select the one which is opposite in meaning of the given word.
Calamity
In the following question, out of the given four alternatives, select the one which best expresses the meaning of the given word.
Amorous
Adolf Hitler committed suicide in _______.
Who among the following has been awarded the 'Rajiv Gandhi Khel Ratna Award' for the year 2016?