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The main product of bacterial action is_________________?
Related MCQs
Ozone hole is substantial depletion of ozone in every year during__________?
Which of the following is used as water disinfectant to avoid the formation of toxic compounds__________?
Chlorination of water may be harmful if the water contains__________?
A single chlorine free radical can destroy how many ozone molecules ?
Which of the following factors help to measure quallity of water ?
Which of the following gases is the main cause of acid rain ?
Which of the following is not primary pollutant__________?
The yellow colour in photochemical smog is due to presence of__________?
Major cause of SO2 on global scale is__________?
Which of the following is not a secondary pollutant__________?
Requirement of macronutrient per acre of the land is__________?
Which of the following is not a heavy industry ?
Pollutants have adverse effect over__________?
The percentage of suspended solid waste in raw water is removed by coagulation is__________?
Which one of the following makes the bulk of hydrospheres content ?
Which substance can be used for disinfecting water ?
The main pollutant of leather tanneries in the waste water is__________?
Newspaper can be recycled again and again how many times ?
In the purification of portable water the coagulant used is__________?
Which statement is wrong ?
Which of the following air pollutants is more dangerous for ozone layer ?
In which of the following layer of atmosphere there is more thickness of ozone layer ?
Which of the following is not a condition for the formation of smog ?
Acid present in acid rain may be__________?
Hypochlorous acid is used for disinfecting the water it reacts with the dissolved ammonia producing__________?
Residence time of methane in the atmosphere is__________?
Three elements needed for the healthy growth of plants are__________?
Which of the following is a macro nutrient ?
The main product of bacterial action is_________________?
A. Nox
B. NO2
C. N2O3
D. NO
Correct Answer:
NO
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Last Updated:
February 11, 2021