Basic Science : Environment In Relation To Human Welfare QUESTIONS AND ANSWERS :: part2 : 21 to 25
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
21.Both abiotic and biotic factors of aquatic ecosystem are affected by |
| Air pollution |
| Soil pollution |
| Land pollution |
| Water pollution |
22.The following produces carcinogenic effect |
| NO₂ |
| SO₂ |
| CO₂ |
| Unburned hydrocarbons |
23.Cancer and cataracts are caused due to exposure to |
| Light |
| Oxygen |
| High radiation |
| Noise pollution |
24.Waste produces to refineries and tanning factories cause |
| Air pollution |
| Space pollution |
| Water pollution |
| Land pollution |
25.A similar green house condition is present in the |
| Troposphere |
| Stratosphere |
| Ozone layer |
| Atmosphere |
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