MCQOPTIONS
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| 1. |
Which one of the following statements about air pollution caused by diesel engines is correct ? |
| A. | It produces large quantity of carbon monoxide at lower and high temperatures |
| B. | It produces large quantity of nitrogen oxides at lower and high temperatures |
| C. | It produces large quantity of carbon monoxide at lower temperature and nitrogen oxides at high temperature |
| D. | It produces large quantity of nitrogen oxides at lower temperature and carbon monoxide at high temperature |
| Answer» D. It produces large quantity of nitrogen oxides at lower temperature and carbon monoxide at high temperature | |