engineering recuitment WBPSC JE Civil Mock Test 2022 Environmental Engineering Sewage Sewage Treatment
Statement (I)-The oxidation ponds which throw their effluents in rivers, just upstream of a lake or reservoirs are generally preferred.
Statement (II)-The produced algae in oxidation pond treatment may settle in the reservoirs and cause anaerobic decomposition.1
Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)
2
Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)
3
Statement ((I) is true but Statement (II) is false
4
Statement (I) is false but Statement (II) is true