Zones of pollution in river
♦️ Zone I :- (Zone of degradation)
▪️DO levels reduce to 40% of original.
▪️except fish, all organisms disappear.
▪️Deoxygenation > Reoxygenation
♦️ Zone II :-.
(Zone of active decomposition)
▪️DO level reduced to zero
▪️heavy polluted zone
▪️All aquatic organisms disappear (fish life will be absent).
♦️ Zone III :- (Zone of recovery)
▪️DO level raised to 40% original
▪️Fish appears in water.
▪️Reoxygenation > Deoxygenation
♦️Zone IV :- (clear water zone)
▪️Reoxygenation only occur no Deoxygenation.
▪️River is recoverd.
▪️DO level rises to original
▪️All aquatic organisms appears
♦️ Zone I :- (Zone of degradation)
▪️DO levels reduce to 40% of original.
▪️except fish, all organisms disappear.
▪️Deoxygenation > Reoxygenation
♦️ Zone II :-.
(Zone of active decomposition)
▪️DO level reduced to zero
▪️heavy polluted zone
▪️All aquatic organisms disappear (fish life will be absent).
♦️ Zone III :- (Zone of recovery)
▪️DO level raised to 40% original
▪️Fish appears in water.
▪️Reoxygenation > Deoxygenation
♦️Zone IV :- (clear water zone)
▪️Reoxygenation only occur no Deoxygenation.
▪️River is recoverd.
▪️DO level rises to original
▪️All aquatic organisms appears
In which Pollution zone of river , Growth of Algae Reappear?
Anonymous Poll
14%
Zone of degradation
51%
Zone of recovery
27%
Zone of active decomposition
8%
Zone of clear water
In which Pollution zone of river , the dissolved oxygen reduced to zero?
Anonymous Poll
28%
Zone of degradation
10%
Zone of recovery
10%
Zone of clean water
52%
Zone of active decomposition
In which Pollution zone of the river , water retains its original dissolved oxygen concentration?
Anonymous Poll
5%
Zone of degradation
31%
Zone of recovery
7%
Zone of active decomposition
58%
Zone of clean water
Identify the zone ,
Fishes were present but algaes were not able to survive.
Fishes were present but algaes were not able to survive.
Anonymous Poll
12%
Zone of recovery
40%
Zone of degradation
24%
Zone of clean water
24%
Zone of active decomposition
In which Pollution zone of the River , the concentration of D.O. reduced to 40% ?
Anonymous Poll
57%
Zone of degradation
8%
Zone of recovery
29%
Zone of active decomposition
6%
Zone of clean water
🔥Breaking News🔥
Railway Recruitment Exams will be through UPSC
Dec 27,2019 NEW DELHI
All new recruits in railways will be inducted through the UPSC civil services exams under five specialities, Railway Board Chairman V K YADAV said on Thursday, days after the Cabinet approved the MERGER of its eight services into one -- the Indian Railway Management Service (IRMS).
He said just like aspirants to the Union Public Service Commission(UPSC),
🔴candidates aspiring to get into railways will have to appear for their prelims🔴 after which they will indicate their preference for IRMS under five specialities -- Four of them engineering specialities for 'technical' operations comprising of Civil, Mechanical, Telecom and Electrical, and one 'Non-technical' speciality which will recruit officers for accounts, personnel and traffic.
"The exact details will be worked out, but the thinking is like this -- The aspirants take the prelim and then indicate their choices. They will be given an option to appear for IRMS also," Yadav said.
Source : Times of India
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Railway Recruitment Exams will be through UPSC
Dec 27,2019 NEW DELHI
All new recruits in railways will be inducted through the UPSC civil services exams under five specialities, Railway Board Chairman V K YADAV said on Thursday, days after the Cabinet approved the MERGER of its eight services into one -- the Indian Railway Management Service (IRMS).
He said just like aspirants to the Union Public Service Commission(UPSC),
🔴candidates aspiring to get into railways will have to appear for their prelims🔴 after which they will indicate their preference for IRMS under five specialities -- Four of them engineering specialities for 'technical' operations comprising of Civil, Mechanical, Telecom and Electrical, and one 'Non-technical' speciality which will recruit officers for accounts, personnel and traffic.
"The exact details will be worked out, but the thinking is like this -- The aspirants take the prelim and then indicate their choices. They will be given an option to appear for IRMS also," Yadav said.
Source : Times of India
Follow CivilMania
Forwarded from CivilMania™
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Nidarr - Dino James [Official Music Video]
Mere versus tha Dino James, Presenting my new track NIDARR
► Get 'Nidarr' Here: https://orcd.co/dopk47x
Song Credits:
Music by Bluish Music (Nilesh Patel)
Mix & Mastered by Abhishek Ghatak
Recording Engineer: - Rahul
Vocals recorded at AMV studios
Written…
► Get 'Nidarr' Here: https://orcd.co/dopk47x
Song Credits:
Music by Bluish Music (Nilesh Patel)
Mix & Mastered by Abhishek Ghatak
Recording Engineer: - Rahul
Vocals recorded at AMV studios
Written…
🔥ISRO Admit card Out🔥
Advt. No. - 02/2019
Post : Scientist Engineer-Civil (BE004)
Exam Date : 12 Jan 2020
Link for Civil Engineering stream
https://apps.isac.gov.in/ced-2019A/ShowStatus.jsp?postno=02/2019_BE004&postname=Scientist/Engineer-SC[Civil]
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Advt. No. - 02/2019
Post : Scientist Engineer-Civil (BE004)
Exam Date : 12 Jan 2020
Link for Civil Engineering stream
https://apps.isac.gov.in/ced-2019A/ShowStatus.jsp?postno=02/2019_BE004&postname=Scientist/Engineer-SC[Civil]
@civilmaniaa