
IIT JEE : Environmental Chemistry QUESTIONS AND ANSWERS :: part2 : 11 to 15
Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :
11.Cyclone collector is used for minimising |
| Radioactive pollution |
| Air pollution |
| Noise pollution |
| Water pollution. |
12.Addition of phosphate and nitrate/fertilizers into water leads to |
| Increased growth of decomposers |
| Reduced of algae growth |
| Increased growth of algae |
| Nutrient enrichment. |
13.Phosphate pollution is caused by |
| Weathering of phosphate roks only |
| Carbon dioxide dissolved in water |
| Phosphate rocks and sewage |
| Sewage and agricultural fertilizers. |
14.The chemical species released by chloroflurocarbons which are harmful to ozone is |
| Fluorine atoms |
| Chlorine free radicals |
| Nitrogen dioxide molecules |
| Chlorine molecules. |
15.The region of atmosphere that extends from 50 km 85 km in altitude is called |
| Troposphere |
| Mesosphere |
| Stratosphere |
| Biosphere. |
More Environmental Chemistry QUESTIONS AND ANSWERS available in next pages
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