Q31. What is the freezing point of water?
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Q33. Calculate the area of a rectangle with length 10 m and width 5 m.
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Q34. Who is the current President of India?
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Q35. What is the chemical formula of Carbon Dioxide?
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Q36. Who is known as the “Iron Man of India”?
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Q37. Which vitamin deficiency causes scurvy?
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Q39. Who is the author of “Geetanjali”?
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Q40. Choose the correct sentence:
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