Inceptisols, Entisols, Vertisols and Mollisols are orders of which one of the following ?
- A.Sugarcane
- B.Soil
- C.Coal
- D.Copper
Correct answer
Explanation
The correct answer is B, Soil. These are four of the twelve soil orders in the USDA Soil Taxonomy, the classification also used by Indian soil scientists. The orders are named by properties and stage of development, each with the ending '-sol' from the Latin 'solum', meaning soil. Entisols are young soils with little or no horizon development, such as fresh alluvium and sand dunes. Inceptisols show the first signs of horizons and are the most widespread order in India, covering much of the alluvial plains. Vertisols are clay-rich soils that swell when wet and crack deeply when dry, which in India are the black or regur soils of the Deccan. Mollisols are dark, humus-rich grassland soils, found in parts of the Tarai and the Himalaya. Option A is wrong because sugarcane is a crop, grouped by variety, not by orders. Option C is wrong because coal is graded as anthracite, bituminous, lignite and peat. Option D is wrong because copper is a metal found in ores such as chalcopyrite. Exam tip: Vertisols are India's black cotton soils; Inceptisols are the country's largest soil order.
Practice Questions
View allArrange the following major elements present in the Earth's crust, in ascending order, in weight percentage :
1. Aluminium
2. Calcium
3. Silicon
4. Oxygen
Select the answer using the code given below :
- A.3, 4, 1, 2
- B.4, 3, 1, 2
- C.2, 1, 3, 4
- D.1, 2, 3, 4
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By weight, calcium is the smallest of the four and oxygen the largest, so the ascending order is calcium, aluminium, silicon, oxygen.
Read the full explanation →Which town stands on the water divide between the Indus and the Ganga river systems?
- A.Ambala
- B.Dehradun
- C.Haridwar
- D.Agra
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The divide between the two great northern systems does not run along a mountain here but across the almost flat plain of Haryana, and Ambala sits on it, so water falling a little to its west goes to the Ghaggar and the Indus side while water falling to its east…
Read the full explanation →The Tapi river originates near which place in Madhya Pradesh?
- A.Multai in Betul district
- B.Amarkantak in Anuppur district
- C.Janapav in Indore district
- D.Sihawa in Dhamtari district
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It is the second of the two large west flowing peninsular rivers and runs almost parallel to the Narmada, with the Satpura range between them.
Read the full explanation →The Narmada river rises from which of the following?
- A.Amarkantak plateau in Madhya Pradesh
- B.Trimbakeshwar in Maharashtra
- C.Mahabaleshwar in Maharashtra
- D.Brahmagiri range in Karnataka
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The correct answer is A, the Amarkantak plateau in Madhya Pradesh, where the Narmada rises at about one thousand metres and begins its westward journey of some thirteen hundred kilometres through Madhya Pradesh and Gujarat to the Gulf of Khambhat; on the way it makes the Dhuandhar falls and the…
Read the full explanation →Which of the following Indian rivers does not form a delta at its mouth?
- A.Mahanadi
- B.Godavari
- C.Narmada
- D.Krishna
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It flows west through the narrow rift between the Vindhya and the Satpura ranges and opens into the Gulf of Khambhat, where strong tides sweep away the silt, so the river ends in a funnel shaped estuary and not a delta; the Tapi, which also flows west in a rift…
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