Which of the following is the cleanest source of energy?
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___________ is obtained by evaporation of sea.
What is the name of the acid in an ant's sting?
In a food chain, what is the difference between primary consumers and secondary consumers?
Family is important to the socialization process because:
What is the maximum number of Members of the Rajya Sabha?
Who won Nobel prize for Physics in 2015?
In the following question, select the odd letter/ letters from the given alternatives