Renewable energy
Renewable energy is a Aptitude concept from the MPSC syllabus, tested in 6 past MPSC questions across 4 exam years between 2013 and 2025. Below are those real questions with their correct answers and explanations, plus the concepts worth being comfortable with first.
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आपण स्वतःला ऊर्जा संकटातून कसे सोडवू शकू ? / How should we extricate ourselves of the energy crisis ?
(a)अनंत वाढणाऱ्या आपल्या संख्येस रोखून / by containing our teeming millions.
(b)अधिकाधिक नवीकरणीय स्त्रोताच्या उपयोगाने / by finding ways of using more and more renewable sources of energy.
(c)औद्योगिकीकरणांचा वेग कमी करून / by slowing the pace of industrialisation.
(d)अधिक तेल व वायूची आयात करून / by importing more of oil and gas.
To solve the energy crisis, humanity must control population growth (a) and shift toward renewable energy sources (b) to reduce dependence on exhaustible resources.
ऊर्जा संकट अधिकाधिक तीव्र होत चालले आहे. आपण कशावर भिस्त टाकावयास हवी ? The problem of energy is becoming increasingly acute. What should we resort to ?
(a)नैसर्गिक वायूवर कारण तो सुलभतेने वापरता येतो. / Natural gas as it can be conveniently used.
(b)नव्याने बनविता येणाऱ्या स्रोतांकडे लक्ष द्यावयास हवे. / We must pay more attention to renewable sources of energy.
(c)आपण सौर ऊर्जेवर भर द्यावयास हवा. / We should lay stress on solar energy.
(d)आपण नवे स्रोत शोधून काढले पाहिजेत. / We should find new sources of energy.
To combat the acute energy crisis, sustainable strategies require shifting focus towards renewable sources of energy (b) and specifically laying stress on solar energy (c).
खालील विधान व निष्कर्ष यांवरून योग्य पर्याय निवडा. विधान : जैवइंधन हे खनिज तेलाला पर्याय ठरू शकते. निष्कर्ष (A) : खनिज तेल निर्मितीला कोट्यवधी वर्ष लागतात. (B) : खनिज तेलाच्या उत्सर्जनामुळे विषारी वायूंची निर्मिती होते. Choose the correct alternative from Statement and Conclusion given below : Statement : Bio-fuel is alternative to crude oil. Conclusion (A) : Crude oil takes crores of years to produce. (B) : Due to crude oil, toxic gases will be created.
(a)खनिज तेल निर्मितीला कोट्यवधी वर्ष लागतात. / Crude oil takes crores of years to produce.
(b)खनिज तेलाच्या उत्सर्जनामुळे विषारी वायूंची निर्मिती होते. / Due to crude oil, toxic gases will be created.
Bio-fuels are considered an alternative to crude oil because crude oil takes millions of years to form (fossil fuel) and its burning releases harmful greenhouse gases and toxic pollutants.
योग्य पर्याय ओळखून जोड्या लावा. (a) संपष्टात न येणारी संसाधने (i) मानवनिर्मित कृते (b) स्ट्रॅटोस्मीयर (ii) जीवाश्म इंधन जसे कोलसा, पेट्रोल (c) अपुनरावर्ती/पुनर्नुनीकरणणास अयोग्य (iii) सौर ऊर्जा संसाधने किंवा अनुतनावर्ती संसाधने (d) क्लोरोफ्लोरोकार्बन्स (iv) ओझोनचा दाट थर
(a)संपष्टात न येणारी संसाधने - (i) मानवनिर्मित कृते
(b)स्ट्रॅटोस्मीयर - (ii) जीवाश्म इंधन जसे कोलसा, पेट्रोल
(c)अपुनरावर्ती/पुनर्नुनीकरणणास अयोग्य संसाधने किंवा अनुतनावर्ती संसाधने - (iii) सौर ऊर्जा
(d)क्लोरोफ्लोरोकार्बन्स - (iv) ओझोनचा दाट थर
Solar energy is inexhaustible (a-iii), the stratosphere contains the dense ozone layer (b-iv), fossil fuels are non-renewable (c-ii), and chlorofluorocarbons are man-made chemicals (d-i). Matching these gives the correct sequence as (iii), (iv), (ii), (i).
खालीलपैकी कोणते एक पुनर्विकरणीय ऊर्जा संसाधनाचा उदाहरण आहे ? / Which of the following is an example of a renewable energy resource ?
Geothermal energy is derived from the Earth's natural internal heat, making it a clean and renewable energy source, unlike coal, petroleum, and natural gas which are fossil fuels.