Question: Global warming may result in [A]. flood [B]. cyclone [C]. decrease in food productivity [D]. all (a), (b) and (c) Answer: Option D Explanation: No answer description available for this question.

Question: Green house effect is accentuated by [A]. deforestation. [B]. rapid industrialisation. [C]. increased transportation activity. [D]. all (a), (b) and (c). Answer: Option D Explanation: No answer description available for this question.

Question: A ‘body’ which allows the short wavelength incoming solar radiation to enter in, but does not allow long wave length outgoing infra red radiation to escape out is called the [A]. global warming [B]. green house [C]. atmospheric effect…

Question: On prolonged exposure to high concentration of carbon monoxide (> 5000 ppm), man dies because [A]. of clotting of blood. [B]. of jamming of respiratory tract. [C]. it forms carboxyhaemoglobin by combining with haemoglobin of blood, thereby making it…

Question: Carbon monoxide is a pollutant, which causes [A]. respiratory disease (e.g. asthma). [B]. asphyxiation (suffocation) leading to death. [C]. retardation in crop growth. [D]. damage to building materials like marble. Answer: Option B Explanation: No answer description available for…

Question: In water chemical treatment plant, use of chloramines ensures [A]. disinfection. [B]. taste & odour control. [C]. weed control in reservoirs. [D]. removal of permanent hardness. Answer: Option A Explanation: No answer description available for this question.

Question: Limestone powder is injected during pulverised coal burning in boilers to __________ the flue gases. [A]. reduce SO2 content in [B]. catalytically convert SO2 to SO3 in [C]. increase the dew point of [D]. none of these. Answer: Option…

Question: 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). Answer: Option D…

Question: For existence of aquatic life in water, the dissolved oxygen content in it, should not be less than __________ ppm. [A]. 10000 [B]. 5 [C]. 500 [D]. 1000 Answer: Option B Explanation: No answer description available for this question.

Question: Lagooning process is mainly a means of the [A]. sludge disposal. [B]. reduction of excessive flow in sewers. [C]. biological treatment of wastes. [D]. none of these. Answer: Option A Explanation: No answer description available for this question.