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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