Q.79
ICAR AIEEA PG 2024 - Physical Science
MCQ (Single Correct) +4 −1
English हिन्दी
Parent material transported by wind is called:
हवा (पवन) द्वारा वाहित (transported) मूल पदार्थ (parent material) कहलाता है:
EXPLANATION Earth Crust, Minerals, Rocks, Weathering Processes and Soil Formation
Soil parent materials are classified by their mode of transport and deposition: Aeolian (Eolian): Parent materials transported and deposited by wind (encompassing both windblown sand dunes and windblown silt/loess). Colluvium: Parent material moved down slopes under the direct action of gravity. Alluvium: Parent material transported and deposited by running water in floodplains and river deltas. Loess is a specific textural type of wind-blown deposit (silt-sized aeolian dust), whereas Aeolian is the broader, universal term for all wind-transported materials. Therefore, Option 1 (Aeolian) is the correct answer.

मृदा के जनक पदार्थों (Parent materials) का वर्गीकरण उनके परिवहन के माध्यम के आधार पर किया जाता है:
इओलिएन (Aeolian / वातोढ़): वायु/पवन द्वारा उड़ाकर लाया और जमा किया गया जनक पदार्थ (जिसमें बालू के टिब्बे और सिल्ट/लोएस दोनों शामिल हैं)।
कोलुवियम (Colluvium / गुरुत्वोढ़): गुरुत्वाकर्षण बल द्वारा पहाड़ी ढलानों के नीचे जमा पदार्थ।
एलुवियम (Alluvium / जलोढ़): बहते हुए नदी जल द्वारा जमा की गई उपजाऊ गाद।
लोएस (Loess) वातोढ़ सिल्ट का एक विशिष्ट उप-प्रकार है, जबकि इओलिएन (Aeolian) वायु-परिवहित सभी पदार्थों की व्यापक वैज्ञानिक श्रेणी है।

अतः सही उत्तर 'इओलिएन' (Aeolian) है (विकल्प 1)।
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