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Which of the following is correctly matched? 1. Biogas – Insecticide2. Electro- – Heart cardiography disorder3. D.D.T. – Cow dung4. Nicotine – Tobacco Code

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Which of the following is correctly matched? <br />1. Biogas – Insecticide<br />2. Electro- – Heart cardiography disorder<br />3. D.D.T. – Cow dung<br />4. Nicotine – Tobacco Code






 
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