| (A) Water - Iron - Air. |
| (B) Iron - Air - Water. |
| (C) Air - Water - Iron. |
| (D) Iron - Water - Air. |
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Answer: (C) Air - Water - Iron.
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| (A) Utilisation of energy. |
| (B) Destruction of bacteria. |
| (C) Prevention of Anaemia. |
| (D) Transportation of Oxygen. |
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Answer: (D) Transportation of Oxygen.
|
| (A) Aluminium Industry. |
| (B) Plastic Industry. |
| (C) Textile Industry. |
| (D) Steel Industry. |
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Answer: (C) Textile Industry.
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| (A) To fight against tooth decay. |
| (B) To take care of our body to fight against different diseases. |
| (C) For easy digestion of food. |
| (D) To cut excess fat. |
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Answer: (C) For easy digestion of food.
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| (A) Bonn - Germany. |
| (B) Vienna - Austria. |
| (C) Lyon - France. |
| (D) Newyork - America. |
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Answer: (C) Lyon - France.
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| (A) Solar energy to mechanical energy. |
| (B) Solar energy to light energy. |
| (C) Solar energy to Chemical energy. |
| (D) Chemical energy to mechanical energy. |
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Answer: (C) Solar energy to Chemical energy.
|
| (A) Sulphur. |
| (B) Carbon. |
| (C) Phosphorous. |
| (D) Zinc Sulphide. |
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Answer: (A) Sulphur.
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| (A) Antarctic region. |
| (B) Equator. |
| (C) Arctic region. |
| (D) Tropic of Cancer. |
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Answer: (A) Antarctic region.
|
| (A) John Logie Baird. |
| (B) Samuel F. B. Morse. |
| (C) Alexander Graham Bell. |
| (D) Laennec. |
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Answer: (B) Samuel F. B. Morse.
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| (A) January, 5 |
| (B) March, 5 |
| (C) June, 5 |
| (D) November, 5 |
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Answer: (C) June, 5
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