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.Management Sciences
A. Coal mining
B. Limestone mining
C. Textile
D. Asbestos
Related Mcqs:
- Very small amount of air pollutants are present in stratosphere also; though most of the atmospheric pollutants are present in the troposphere. Which of the following atmospheric pollutants does not cause the ozone layer depletion in atmosphere at tremendous rate ?
- A. CO B. SO2 C. NOx D. CFC (chloro fluoro carbons)...
- White smoke coming out of the chimney of a furnace indicates the use of_________________?
- A. Low excess air B. Very high excess air C. Gaseous fuel in the furnace D. Liquid fuel in the furnace...
- Inhalation of lead compounds present in automobile exhaust (using leaded petrol) causes__________________?
- A. Blood poisoning B. Anaemia C. Nervous system disorder D. All A., B. & C....
- Exposure to SO2 containing chimney gases results in the__________________?
- A. Reduction in strength of leather & cloth B. Acceleration of corrosion rates of metals C. Increased drying & hardening time of paints D. All A., B. and C....
- Irradiation of water by ultraviolet light of suitable wavelength is commonly used for disinfection of water in___________________?
- A. Food industry B. Municipal sewage treatment C. Petroleum refinery D. Iron & steel plant...
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