Basic Science : Environment In Relation To Human Welfare QUESTIONS AND ANSWERS :: part1 : 16 to 20
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
16.Any undesirable change in physical, chemical or biological characters is known as |
| Respiration |
| Pollution |
| Pollutants |
| Atmosphere |
17.Smoke-polluted atmosphere aggravates |
| Dysentry |
| Respiratory diseases |
| Typhoid |
| Heart diseases |
18.Percentage of inert gases in the troposphere is |
| 79 |
| Trace |
| 20 |
| 0.03 |
19.A solid fuel used for industrial, thermal and domestic heating purpose is |
| Uranium |
| Coal |
| Strontium |
| Caesium |
20.A green house gas is |
| CO |
| SO₂ |
| CH₄ |
| CO₂ |
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