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What is 'Viticulture' specifically famous for in the Mediterranean region?
भूमध्यसागरीय क्षेत्र में 'विटीकल्चर' (Viticulture) विशेष रूप से किसके लिए प्रसिद्ध है?
(A) Apple cultivation
(B) Grape cultivation
(C) Rice production
(D) Fish farming
✅ Answer & Explanation
Sahi jawab: B) Grape cultivationExplanation: Viticulture ka matlab angur (grapes) ki kheti hota hai, jo Mediterranean region me commercial wine production ke liye bohot famous hai.
In which type of mining is a vertical 'Shaft' required to reach deep mineral ores?
गहरे खनिज अयस्कों तक पहुँचने के लिए किस प्रकार के खनन में 'शाफ्ट' (Shaft) की आवश्यकता होती है?
(A) Opencast / Surface mining
(B) Underground mining
(C) Alluvial placer mining
(D) Strip mining
✅ Answer & Explanation
Sahi jawab: B) Underground miningExplanation: Zameen ke bohot andar gehre deposits tak pahunchne ke liye vertical shafts aur horizontal tunnels banayi jaati hain, jise underground ya shaft mining bolte hain.
Which type of agriculture is highly developed in the Mediterranean region due to its winter rainfall regime?
सर्दियों की वर्षा के कारण भूमध्यसागरीय क्षेत्र में किस प्रकार की कृषि अत्यधिक विकसित है?
(A) Wet paddy cultivation
(B) Specialized citrus fruit farming (Citriculture)
(C) Intensive dairy ranching
(D) Nomadic reindeer pastoralism
✅ Answer & Explanation
Sahi jawab: B) Specialized citrus fruit farming (Citriculture)Explanation: Mediterranean climate me sardiyo me hone wali barish aur dry summers khatte raseele phalo (citrus fruits jaise santra, nimbu, olive aur anjeer) ke liye ideal hoti hai.
The physical detachment and transportation of weathered regolith by wind or water is termed:
पवन या जल के माध्यम से अपक्षयित 'रेगोलिथ' के स्थानांतरण को क्या कहा जाता है?
(A) Weathering
(B) Erosion
(C) Lithification
(D) Carbonation
✅ Answer & Explanation
Sahi jawab: B) ErosionExplanation: Weathering se toote hue regolith ko hawa ya paani dwara ek jagah se doosri jagah baha kar le jana erosion (apardan) kehlata hai.
Which geochemical acronym represents the dense basaltic oceanic crust?
कौन सा संक्षिप्त नाम महासागरीय क्रस्ट का प्रतिनिधित्व करता है?
(A) Sial
(B) Sima
(C) Nife
(D) KREEP
✅ Answer & Explanation
Sahi jawab: B) SimaExplanation: Sima ka matlab Silica aur Magnesium hota hai, jo dense aur heavy basaltic oceanic crust ko denote karta hai.
A 'V-shaped' valley is a typical erosional landform created by which youthful geomorphic agent?
'वी-आकार' की घाटी किस युवा भू-आकृतिक कारक की अपरदनी विशेषता है?
(A) Aeolian wind
(B) Running water (Youthful river)
(C) Alpine glacier
(D) Ocean waves
✅ Answer & Explanation
Sahi jawab: B) Running water (Youthful river)Explanation: Nadi jab apni youthful stage me pahado par hoti hai toh vertical downcutting bohot tezi se karti hai, jisse deep V-shaped valley banti hai.
The Mohorovičić (Moho) Discontinuity marks the boundary between which two layers?
'मोह' (Moho) असंबद्धता किन दो परतों के बीच स्थित है?
(A) Upper and Lower Mantle
(B) Crust and Mantle
(C) Mantle and Outer Core
(D) Inner and Outer Core
✅ Answer & Explanation
Sahi jawab: B) Crust and MantleExplanation: Moho discontinuity Earth ki rocky crust ke base aur underlying dense mantle ke beech ka seismic boundary marker hai.
What geological process consolidates loose mineral sediments into coherent sedimentary rock?
'अवसादों' को ठोस 'शैल' में बदलने वाली भूवैज्ञानिक प्रक्रिया क्या कहलाती है?
(A) Metamorphism
(B) Lithification (Compaction and Cementation)
(C) Weathering
(D) Subduction
✅ Answer & Explanation
Sahi jawab: B) Lithification (Compaction and Cementation)Explanation: Layers me jama hue loose sediments par jab heavy pressure padta hai aur cementation hota hai, toh wo solid sedimentary rock ban jaate hain; ise lithification kehte hain.
Which diagnostic physical property of a mineral measures its resistance to scratching?
खनिज का कौन सा गुण 'खरोंच के प्रति प्रतिरोध' को मापता है?
(A) Lustre
(B) Streak
(C) Hardness
(D) Cleavage
✅ Answer & Explanation
Sahi jawab: C) HardnessExplanation: Kisi mineral par scratch padne ke resistance ko uski Hardness kehte hain, jise Mohs scale par 1 se 10 ke beech measure karte hain.
Which seismic body wave travels fastest and arrives first at a seismograph station?
कौन सी भूकंपीय तरंग सिस्मोग्राफ स्टेशन पर सबसे पहले पहुँचती है?
(A) Secondary wave (S-wave)
(B) Primary wave (P-wave)
(C) Love wave (L-wave)
(D) Rayleigh wave (R-wave)
✅ Answer & Explanation
Sahi jawab: B) Primary wave (P-wave)Explanation: P-waves (Primary waves) longitudinal nature ki hoti hain aur inki speed sabse zyada hoti hai, isliye ye seismograph par sabse pehle record hoti hain.
What is the primary astronomical cause of differential solar heating across Earth's surface?
पृथ्वी की सतह के 'विभेदी तापन' का प्राथमिक खगोलीय कारक क्या है?
(A) Varying lunar orbital distance
(B) Angle of incidence of solar rays (due to planetary curvature and axial tilt)
(C) Albedo variation of vegetation
(D) Atmospheric dust thickness
✅ Answer & Explanation
Sahi jawab: B) Angle of incidence of solar rays (due to planetary curvature and axial tilt)Explanation: Earth ke spherical curvature aur axial tilt ki wajah se alag-alag latitudes par sunrays ka angle of incidence alag hota hai, jisse heat distribution uneven hota hai.
The geodynamic process of 'Subduction' occurs along which type of plate boundary?
'सबडक्शन' (अधोगमन) की प्रक्रिया किस प्रकार की प्लेट सीमा पर होती है?
(A) Divergent constructive margin
(B) Convergent destructive margin
(C) Transform conservative fault
(D) Intraplate mantle hotspot
✅ Answer & Explanation
Sahi jawab: B) Convergent destructive marginExplanation: Subduction convergent (destructive) plate boundary par hota hai jahan aamne-saamne takrane par denser plate doosri plate ke niche mantle me dhas jaati hai.
Which phase of matter completely arrests the propagation of seismic Secondary (S) waves?
पदार्थ की कौन सी अवस्था भूकंपीय एस-तरंगों (S-waves) के संचरण को पूरी तरह रोक देती है?
(A) Crystalline Solid
(B) Liquid
(C) Dense Lithosphere
(D) Compact Granitic Crust
✅ Answer & Explanation
Sahi jawab: B) LiquidExplanation: S-waves transverse shear waves hoti hain jinhe medium me rigidity chahiye; liquids me shear strength 0 hone ki wajah se ye liquid me travel nahi kar sakti.
In physical geography, 'Regolith' is defined as:
भौतिक भूगोल में 'रेगोलिथ' (Regolith) को किस रूप में परिभाषित किया जाता है?
(A) Unweathered crystalline bedrock
(B) A mantle of loose, weathered rock debris and soil overlying unweathered bedrock
(C) Solidified intrusive plutonic magma
(D) Organic humus layer only
✅ Answer & Explanation
Sahi jawab: B) A mantle of loose, weathered rock debris and soil overlying unweathered bedrockExplanation: Solid unweathered bedrock ke theek upar bichi hui loose, weathered chattan ke tukdo aur mitti ki blanket layer ko Regolith kehte hain.
The petrological term 'Sial' designates continental rocks rich in:
'सियाल' (Sial) शब्द किन तत्वों से भरपूर महाद्वीपीय चट्टानों को संदर्भित करता है?
(A) Silica and Magnesium
(B) Silica and Aluminum
(C) Iron and Nickel
(D) Calcium and Sodium
✅ Answer & Explanation
Sahi jawab: B) Silica and AluminumExplanation: Sial continental granitic crust ko represent karta hai jo lightweight minerals jaise Silica (Si) aur Aluminum (Al) se bani hoti hai.
Which mineral establishes the absolute benchmark hardness value of 10 on the Mohs scale?
मोह स्केल पर किस खनिज का कठोरता मान मानक 10 है?
(A) Corundum
(B) Diamond
(C) Topaz
(D) Quartz
✅ Answer & Explanation
Sahi jawab: B) DiamondExplanation: Diamond Mohs scale ka absolute top mineral hai jiska benchmark hardness 10 hota hai, aur ye natural world ka sabse hard substance hai.
Which seismic surface wave induces horizontal transverse ground shaking perpendicular to the direction of propagation?
कौन सी भूकंपीय धरातलीय तरंग प्रसार दिशा के लंबवत क्षैतिज रूप से कंपन कराती है?
(A) P-wave
(B) Love wave (L-wave)
(C) Rayleigh wave (R-wave)
(D) S-wave
✅ Answer & Explanation
Sahi jawab: B) Love wave (L-wave)Explanation: Love waves surface waves hoti hain jo wave ki direction ke 90 degree par zameen ko horizontal side-to-side (saanp ki tarah) shake karwati hain.
The semi-fluid, ductile upper portion of the mantle, the Asthenosphere, is petrologically composed of:
'एस्थेनोस्फीयर' (दुर्बलता मंडल) मुख्य रूप से किस शैल से बनी है?
(A) Granite
(B) Peridotite
(C) Sandstone
(D) Andesite
✅ Answer & Explanation
Sahi jawab: B) PeridotiteExplanation: Asthenosphere ultramafic rock Peridotite se bani hoti hai jo high temperature aur pressure ke chalte semi-molten ductile plastic state me rehti hai.
What geochemical characteristics define 'Mafic' igneous rocks?
'मैफिक' (Mafic) आग्नेय चट्टानों की क्या विशेषताएं होती हैं?
(A) Dense, dark-colored, rich in magnesium and iron, with low silica content
(B) Lightweight, pale-colored, rich in potassium and quartz
(C) Vesicular, glassy, and completely silica-free
(D) Exclusively organic and fossiliferous
✅ Answer & Explanation
Sahi jawab: A) Dense, dark-colored, rich in magnesium and iron, with low silica contentExplanation: Mafic rocks (jaise Basalt) me iron aur magnesium ka content high hota hai jabki silica kam hota hai, jisse ye dark colored aur heavy dense hoti hain.
In the geological rock cycle, how does a metamorphic rock transform into an igneous rock?
शैल चक्र में कायांतरित चट्टान किस प्रक्रिया से पुनः आग्नेय चट्टान में बदलती है?
(A) Atmospheric weathering and chemical dissolution
(B) Complete melting into magma followed by cooling and crystallization
(C) Tectonic compaction and lithification
(D) Metasomatic hydration
✅ Answer & Explanation
Sahi jawab: B) Complete melting into magma followed by cooling and crystallizationExplanation: High geothermal heat me jab metamorphic rock poori tarah pighal kar liquid magma ban jaati hai aur fir thandi hokar solidify hoti hai, toh igneous rock banti hai.
Which diagnostic mineral property refers to the color of its finely ground powder?
खनिज का कौन सा गुण उसके बारीक पिसे हुए चूर्ण के रंग को दर्शाता है?
(A) Lustre
(B) Streak
(C) Cleavage
(D) Fracture
✅ Answer & Explanation
Sahi jawab: B) StreakExplanation: Unglazed porcelain plate par mineral ko ragadne se jo powdered color milta hai use Streak kehte hain, jo aksar mineral ke bahar ke color se alag hota hai.
What geometric cross-sectional shape characterizes a concordant 'Laccolith' intrusion?
'लैकोलिथ' (Laccolith) अंतर्भेदी आग्नेय पिंड का ज्यामितीय आकार कैसा होता है?
(A) Saucer-shaped concave basin
(B) Dome-shaped with a flat floor (mushroom-like)
(C) Narrow vertical planar sheet
(D) Massive discordant bottomless batholith
✅ Answer & Explanation
Sahi jawab: B) Dome-shaped with a flat floor (mushroom-like)Explanation: Laccolith ek dome-shaped ya mushroom jaisa intrusion hota hai jiska base flat hota hai aur niche pipe-like conduit se magma supply hota hai.
Which class of geomorphic forces operates continuously to erode elevated structural relief down to a base level?
धरातल के उच्चावच को घिसकर समतल करने के लिए कौन से भू-आकृतिक बल कार्य करते हैं?
(A) Endogenic forces
(B) Exogenic forces (Gradational processes)
(C) Diastrophic forces
(D) Orogenetic thrusts
✅ Answer & Explanation
Sahi jawab: B) Exogenic forces (Gradational processes)Explanation: Exogenic ya gradational forces (hawa, paani, glacier) unche pahado ko kaat kar (erosion) aur gaddho ko bhar kar (deposition) zameen ko level karti hain.
The true 'Geoid' shape of the Earth signifies that it is:
पृथ्वी के 'जॉइड' (Geoid) आकार का सटीक भौगोलिक अर्थ क्या है?
(A) Flattened at the poles and bulged at the equator
(B) A mathematically perfect spherical ball
(C) Pear-shaped with identical northern and southern hemispheres
(D) Concave across low-latitude ocean basins
✅ Answer & Explanation
Sahi jawab: A) Flattened at the poles and bulged at the equatorExplanation: Axial rotation ke centrifugal force ki wajah se Earth perfect sphere nahi hai; ye equator par thodi bahar nikli (bulged) aur poles par chapti (flattened) hai.
Which seismic waves propagate with the slowest velocity while inflicting the greatest structural damage?
कौन सी भूकंपीय तरंगें सबसे धीमी गति से चलती हैं लेकिन धरातल पर सर्वाधिक विनाश करती हैं?
(A) Compressional P-waves
(B) Shear S-waves
(C) Surface waves (Rayleigh and Love waves)
(D) Refracted core mantle waves
✅ Answer & Explanation
Sahi jawab: C) Surface waves (Rayleigh and Love waves)Explanation: Surface waves (Love aur Rayleigh) sabse kam speed se chalti hain lekin inka ground motion amplitude sabse bada hota hai, isliye ye sabse zyada destruction karti hain.
Which mineral establishes the baseline hardness value of 1 on the Mohs scale?
मोह पैमाने पर न्यूनतम कठोरता स्तर 1 किस खनिज का होता है?
(A) Gypsum
(B) Talc
(C) Calcite
(D) Fluorite
✅ Answer & Explanation
Sahi jawab: B) TalcExplanation: Talc Mohs scale par level 1 ka baseline reference mineral hai aur ye sabse soft mineral hota hai jise naakhun se bhi kharocha ja sakta hai.
Which geological eon marked the sustained rise of atmospheric oxygen to modern levels?
किस भूवैज्ञानिक युग (Eon) में वायुमंडलीय ऑक्सीजन आधुनिक स्तरों तक पहुँची?
(A) Hadean
(B) Phanerozoic
(C) Archean
(D) Early Proterozoic
✅ Answer & Explanation
Sahi jawab: B) PhanerozoicExplanation: Phanerozoic eon ke Carboniferous period me dense swampy forests ke heavy photosynthesis se oxygen badhkar lagbhag 30% tak chali gayi thi.
Which atmospheric constituent acts as the primary thermodynamic 'engine' driving weather disturbances and latent heat transfer?
वायुमंडल में कौन सा घटक मौसम परिवर्तन और गुप्त ऊष्मा स्थानांतरण के 'इंजन' के रूप में कार्य करता है?
(A) Inert Argon
(B) Water Vapor
(C) Stratospheric Ozone
(D) Molecular Nitrogen
✅ Answer & Explanation
Sahi jawab: B) Water VaporExplanation: Water vapor phase change ke waqt huge amount me latent heat absorb aur release karta hai, jo thunderstorms, cyclones aur atmospheric convection ko power karta hai.
What technological innovation during the Industrial Revolution expanded deep-crust mineral extraction?
औद्योगिक क्रांति के दौरान किस तकनीकी विकास ने खनिज निष्कर्षण को व्यापक रूप से बदल दिया?
(A) Banning mechanized smelting
(B) Steam-powered pumping, mechanized ventilation, and dynamite blasting for deep shaft mining
(C) Exclusive adoption of wooden pickaxes
(D) Cessation of rail logistics
✅ Answer & Explanation
Sahi jawab: B) Steam-powered pumping, mechanized ventilation, and dynamite blasting for deep shaft miningExplanation: Steam-powered water pumps, ventilation fans aur dynamite blasting ne gehre underground shafts se paani nikal kar commercial mining ko aasan banaya.
What defines 'Shaft Mining' (Underground mining)?
'कूपकी खनन' (Shaft Mining) का क्या अर्थ है?
(A) Scraping surface soil with bulldozers
(B) Sinking vertical shafts and driving horizontal galleries underground to reach deep ore bodies
(C) Dredging coastal sea-floor placers
(D) Hydraulic panning in rivers
✅ Answer & Explanation
Sahi jawab: B) Sinking vertical shafts and driving horizontal galleries underground to reach deep ore bodiesExplanation: Zameen ke bohot niche gehre minerals nikalne ke liye vertical elevator shafts aur horizontal galleries bana kar kaam karne ko shaft mining bolte hain.