Basic Science : Environment In Relation To Human Welfare QUESTIONS AND ANSWERS :: part1 : 11 to 15
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
11.The ozone layer extends from the earth surface upto |
| 5 to 10 Km |
| 15 to 30 Km |
| 25 to 35 Km |
| 30 to 60 Km |
12.The surfaces of plants are blackened by |
| Smoke |
| Smog |
| Fog |
| Soot |
13.Dust particle from the combustion of coal and oil form |
| Radioactive dust |
| Smog |
| Soot |
| Smoke |
14.Acid rain consists of |
| Carbonic acid |
| Sulphuric acid |
| Nitric acid |
| All the three |
15.The upper of the earth’s surface is called |
| Atmosphere |
| Stratosphere |
| Ozone layer |
| Troposphere |
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