Basic Science : Environment In Relation To Human Welfare QUESTIONS AND ANSWERS :: part1 : 26 to 30
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
26.A substance that occurs in the environment as a result of man’s activities and which has a deleterious effect on living organisms is called |
| Nutrient agent |
| Chemical agent |
| Pollutant |
| Biological agent |
27.The major particulate pollutants are |
| Smoke and Radioactive dust |
| Water vapour and carbon dioxide |
| Methane and nitrous oxide |
| Sulphur dioxide and nitrogen dioxide |
28.A layer of non-circulating gases above the earth surface is |
| Stratosphere |
| Troposphere |
| Ozone layer |
| Atmosphere |
29.The lower region above the earth’s surface is called |
| Atmosphere |
| Ozone layer |
| Stratosphere |
| Troposphere |
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