Environmental Science Basics
Environmental Science Basics is a Science & Technology concept from the MPSC syllabus, tested in 2 past MPSC questions (2020, 2023). Below are those real questions with their correct answers and explanations, plus the concepts worth being comfortable with first.
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खालीलपैकी कोणती विधाने अचूक आहेत ? / The correct statements from the following are :
(a)गाळणे ही भौतिक क्रिया आहे. / Filtration is a physical action.
(b)मातीमध्ये तयार झालेल्या ऑक्सिजनची वातावरणातील कार्बन डायऑक्साइड बरोबरची अदलाबदल तापमानावर अवलंबून असते. / The interchange of oxygen produced in soil and atmospheric carbon dioxide is temperature dependent.
(c)सांडपाणी, जमिनीची सुपीकता वाढवते. / Sewage increases the fertility of soil.
(d)सेंद्रिय पदार्थाचे अपघटन हे एरोबिक किंवा नॉनएरोबिक जीवाणू द्वारे होते. / Decomposition of organic matter by bacteria could be aerobic or Non-aerobic.
Statements (a), (c), and (d) are correct: filtration is a physical process, treated sewage can add nutrients to soil increasing fertility, and organic matter decomposes via aerobic or non-aerobic bacteria.
Which of the following statements are true in the context of the given passage ?
(a)Human beings fully know that they are causing ecological imbalance
(b)During Holocene period, climate was stable
(c)Modern industrial farming is based on overuse of phosphorus
(d)Amazon rain forest will not get destroyed irrespective of man's disruptive activities
Based on standard reading comprehension passages regarding ecology, the Holocene period featured a stable climate, and modern industrial farming heavily relies on phosphorus overuse.