Aerobic Decomposition
Aerobic Decomposition is a Science & Technology concept from the MPSC syllabus, tested in 2 past MPSC questions (2020). Below are those real questions with their correct answers and explanations, plus the concepts worth being comfortable with first.
📅 Today's Daily Challenge
Five fresh MPSC questions, the same for everyone today — free, no signup.
Asked in
What you need to know first
Real questions that test this
सांडपाण्याच्या जीवाणू मार्फत होणाऱ्या एरोबिक अपघटनाच्या प्रक्रियेत ______ / During the aerobic decomposition of sewage, by bacteria ______
(a)आवश्यक असलेला ऑक्सिजन हा सरळ वातावरणातून घेतला जातो / the required oxygen is directly taken from the atmosphere
(b)तयार झालेल्या कार्बन डायऑक्साइडची अदलाबदल वातावरणातील ऑक्सिजन बरोबर होते / the produced carbon dioxide is interchanged with the atmospheric oxygen
(c)मातीच्या विविध थरात उपलब्ध असलेला कार्बन डायऑक्साइड वापरला जातो / the carbon dioxide present in different layers of soil is used
During aerobic decomposition by bacteria, the carbon dioxide produced is interchanged with atmospheric oxygen to sustain the biological process.
खालीलपैकी कोणती विधाने चूक आहेत ? / Which of the following are incorrect statements ?
(a)जिवाणूंच्या नॉनएरोबिक अपघटनाला, एरोबिक अपघटनापेक्षा प्राधान्य दिले जात नाही. / A non-aerobic decomposition is not preferred over an aerobic decomposition by bacteria.
(b)सरंध्र मातीला गाळण क्रियेत प्राधान्य दिले जात नाही. / Porous soil is not preferred for filtration.
(c)मातीत असलेले सेंद्रिय आम्ल मातीची सुपीकता कमी करतात. / Organic acids present in soil decrease the fertility of soil.
(d)खडकळ जमिन, गाळण प्रक्रियेला आणि नॉनएरोबिक अपघटनाला उपयुक्त नाही. / Rocky soils are unsuitable for filtration and non-aerobic decomposition.
Statements (b) and (c) are incorrect because porous soil is indeed preferred for filtration, and organic acids do not necessarily decrease overall soil fertility inappropriately in all contexts.