TS Police SI Prelims 2018 Paper

© examsiri.com
Question : 110 of 200
 
Marks: +1, -0
Identify the correct statements from the following:
(a) CFCs are responsible for the depletion of the Ozone layer.
(b) Water vapor, methane, CO2 CFCs., nitrous oxide are greenhouse gases.
(c) The BOD value of pure water is 100 ppm.
Go to Question: