[WpProQuiz 21]
Daily Quiz : UPSC Prelims Marathon – January 28
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56 responses to “Daily Quiz : UPSC Prelims Marathon – January 28”
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Daily Quiz – January 28
Results
3 of 6 questions answered correctly
Your time: 00:02:20
You have reached 3 of 6 scores, (50%) -
@Forumias plss provide detailed solutions
Plsss -
Pls share explanations for the questions as well
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Well friend
Where were you?
Actually source here means the origin part
like nitrogen in the atmosphere (as it is part of Gaseous Cycle)
Sulphur on the contrary has reservoir in the soil and sediments.
Well the link is showing error. -
Hi:)It is according to the answer also..
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http://link.springer.com/chapter/10.1007%2F978-94-009-4738-2_14
Hi:)
Have a read..Ocean is also a source of atmospheric sulphur actually..had to mine thispaper .. -
Great.
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it seems today we will get surprising mind blowing test from @forumias-7f07ca326ce76cdde680e4b3d568bce8:disqus guru… be ready… finger crossed..
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Results
4 of 6 questions answered correctlyYour time: 00:05:08
You have reached 4 of 6 scores, (66.67%)
Average score 36.4%
Your score 66.67%
Categories
Environment 66.67%
Thanks for attempting the Quiz. -
Sulfur has no other source than terrestrial source.
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Volcanoes toh deep ocean me bhi hote hain..That’s how I guessed ocean surface as a source.
Waise answer now is all of the above are sources. Going by the discussions here, perhaps the correct answer was different earlier.
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Here the Logic behind the question
a) e.g Fish ingest water,breaks the molecule and utilised the oxygen
b) Human,utilised pure oxygen with other gasesOverall i don’t find the question to be accurate since respiration involved release of co2 and i dont think it involve in oxygen cycle,i think the answer is wrong,i choose the option d) 2 $ 3
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Daily Quiz – January 28
Results
5 of 6 questions answered correctlyYour time: 00:03:21
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c the net input output, n then say if we are contributing towards oxygen in atmosphere
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4 of 6 questions answered correctly
Your time: 00:05:24
You have reached 4 of 6 scores, (66.67%)
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frend plz correct my question,in Q. Oxygen enters the aquatic ecosystem through:Respiration of marine animalsIS ALSO THE ANSWER,HERE IN QTN ASKED OXYGEN ENTERS BUT NOT IN TERMS OF QUANTITY,FO example take human beings,though we take o2 n give out CO2, it is also true we release o2 also but less in quantity,it does not mean we r not releasing oxygen,so frnds plz correct if am wrong
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Can someone please explain why volcanic eruption is not source of sulphur?
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hey thanx…:) silly mistake
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agree, that is what the second option says- the air-water interface…
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Some aquatic animals take oxygen from atmosphere too. Maybe that will be the logic behind it. Anyone here, please clarify.
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let it be sir….I still believe though that the answers are marked incorrect- for both photsynthesis and respiration cannot be the source of a single gas – as the options mention…thank you for entertaining the doubt…
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not an issue…
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Sulphur will not be present in molecular form in atmosphere, it will always be present in it’s oxide. Hence, I think word to look for was atmospheric source and not SULPHUR.
You can google the sources of atmospheric sulphur and will get the results. -
when they take oxygen dissolved in the water -its already in the ecosystem _for the ocean water is part of the ecosystem- what they then contribute by respiration is not oxygen but CO2 ??
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Oxygen enters the aquatic ecosystem through:-
They contribute by intaking oxygen – they form the part of aquatic ecosystem and hence by intaking atmospheric or dissolved oxygen in ocean, they help in allowing oxygen to enter the aquatic ecosystem.Again it’s the word game 🙂
Every question today has some words twisting.
You should not think that you need to find sources of oxygen. You need to explore deeper into the meaning of the question.Similar was the problem in atmospheric sources of sulphur, while most of us were fool to think about sources of atmospheric sulphur, it’s our preconceived idea which creates problem.
(Note : I also made the same mistake as you made 🙂 )
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The WORD was SULPHUR- for what goes to atmosphere after all the options mentioned is not SULPHUR but its OXIDES ….
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at the cost of sounding dumb I ask….
how does respiration by aquatic animals contribute to aquatic oxygen ? -
What can be the atmospheric source then ?
Can atmospheric source be lightening causing production of SOx due to interaction of atmospheric sulphur and oxygen at high temperature ?? -
hmmm – Atmospheric sources was the WORD to look at 🙂
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_/_ Sahi pakde hain 🙂
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6/6
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Friend sulphur do not have atmospheric source it’s source is terrestrial
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They have specifically asked atmospheric source
And none of them is atmospheric source as sulphur only has terrestrial source -
2/5
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Results
4 of 6 questions answered correctlyYour time: 00:05:33
You have reached 4 of 6 scores, (66.67%)
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Great Job done.
Thanks Captain 🙂
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So, it’s a wrong answer.
Ok.
Thanks Aniruddh. 🙂 -
Exactly. DMS emission occurs by phytoplankton.
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DMS originates primarily from DMSP, a major secondary metabolite in some marine algae.[1] DMS is the most abundant biological sulfur compound emitted to the atmosphere.
Good question @ForumIAS – I hope you are asking for correct choices
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yaa
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I think – question wants to ask which of them are sources of Sulphur instead of incorrect choices.
One can guess this answer from sulphur cycle, though I was not able to guess dimethyl sulfide as a source of sulphur from ocean surface. But as you can look in the diagram, all 4 are the sources of atmospheric sulphur.
Burning fossil fuels like coal – we all know coal contains sulphur and hence it is a source of sulphur dioxide.
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Wrong answer.
Volcanic eruptions and Combustion of fossil fuels are sources of Sulphur.
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_/_
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(y)
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Results
5 of 6 questions answered correctlyYour time: 00:02:04
You have reached 5 of 6 scores, (83.33%)
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Thanks Arvind.
I was looking for this answer.
Can you also help me in understanding why VOLCANIC ERUPTIONS are not a source of Sulphur in the Atmosphere?
Thanks in Advance. 🙂 -
Apni hi galti.
I could have scored 5/6.Hey all,
can anyone tell me why none of the options in question number 3 is correct? -
4 of 6 questions answered correctly
Your time: 00:01:56
You have reached 4 of 6 scores, (66.67%)
Average score 33.55%
Your score 66.67%
CategoriesEnvironment 66.67%
Thanks for attempting the Quiz. -
Daily Quiz – January 28
Results
2 of 6 questions answered correctlyYour time: 00:05:46
You have reached 2 of 6 scores, (33.33%)
Average score 33.45%
Your score 33.33%
CategoriesEnvironment33.33%
Thanks for attempting the Quiz.Close to most of us.
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3/6
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hi, in the question asked which one is incorrect answer
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what is the source of enviorment. Pls can any one tell me . Forum IAS pls share the resources
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2/6 🙁 can anyone explain hw ocean surface s atmospheric souce of sulphur???
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Found the answer on wikkipedia ::
There is no significant amount of sulfur held in the atmosphere with all of it coming from either sea spray or windblown sulfur rich dust,[4] neither of which is long lived in the atmosphere. In recent times the large annual input of sulfur from the burning of coal and other fossil fuels adds a substantial amount SO2 which acts as an air pollutant. In the geologic past, igneous intrusions into coal measures have caused large scale burning of these measures, and consequential release of sulfur to the atmosphere. This has led to substantial disruption to the climate system, and is one of the proposed causes of the great dying.
https://en.wikipedia.org/wiki/Sulfur_cycle#Sulfur_sources_and_sinks
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Results
5 of 6 questions answered correctlyYour time: 00:04:25
You have reached 5 of 6 scores, (83.33%)
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How surface of the ocean contributes Sulphur to atmosphere??? -
4/6
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