HomeUGC NET Environmental Science Practice Test Environmental Science Practice Test | UGC NET Exam 1.The wavelength range of UV-C radiation is 320-400nm 280-320nm 100-1500nmm 240-280nm 2.Lightening in the atmosphere produces NO CO CO2 NH3 3.The principal comeponents of photochemical smog in urban areas are SO2 and NO2 SPM and CO SPM and NO2 Hydrocarbons and Ozone 4.Natural gas is composed primarily of Methane n-butane n-octane A mixture of n-octane and n-butane 5.Which of the following chemical species of mercury is highly toxic to living system? Mercurous ion mercuric ion organo mercurials atomic mercury 6.Which one of the following is a waste recycling method of solid waste management composting Sanitary landfill Pelletisation Incineration 7. The acidity of normal rain water is due to CO2 Cl2 NO2 SO2 8. Pyramid of trophic levels is alwyas upright in case of Biomass Number Energy All of the above 9.Which one of the following is an endoenzyme in soil Cellulase Invertase Protease Dehydrogenase 10. Walkley and Black rapid titration method is used for the determination of Organic carbon content of soil nitrate content of soil phosphate content of soil Fluoride content of soil Score = Correct answers: Practice more: Practice Test on Cell Biology Methods in Biology Tags: UGC NET Environmental Science Practice Test Facebook Twitter