Q31. Which of the following is NOT a greenhouse gas?
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Q32. Which is the national flower of India?
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Q33. The primary source of energy is:
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Q35. Who wrote "Gitanjali"?
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Q36. Which organ produces insulin?
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Q37. Which country is known as the Land of the Rising Sun?
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Q38. Calculate the area of a rectangle of length 10 cm and breadth 5 cm.
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Q39. Which gas do plants absorb?
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Q40. Who is known as the Father of the Indian Nation?
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