Environmental Studies · Geography
Soil Science
1,499 Questions
Soil Science examines the formation, classification, and properties of soil as a critical natural resource. This hub offers practice questions covering soil horizons, soil types like laterite and black soil, and regional soil characteristics. The content is highly useful for agriculture exams and civil services preparation.
Soil typesSoil horizonsSoil formation factorsAgricultural soil requirementsIndian soilsForest and mountain soils
Soil Science Questions
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sandy Soil
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clay Soil
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loamy Soil
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black Soil
D
Correct answer
Explanation
It is mainly distributed in, Maharastra, Madhya Pradesh, parts of Gujarat, Andhra, Tamil Nadu and Karnataka.They are the products of weathering of deccan trap. They can be deep black soils, clay loam soils, sandy clay soils. It is suitable for growing cotton.
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Loamy soil
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Sandy soil
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Gravel
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Clayey soil
A
Correct answer
Explanation
Loamy soil is considered ideal for plant growth because it provides a balanced mixture of sand, silt, and clay, offering good drainage, aeration, and water retention.
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1,2,3
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2,3,4
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1 and 4
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2 and 3
C
Correct answer
Explanation
Laterite soils are typically red due to iron oxides (1) and are suitable for crops like cashew nuts and tapioca (4). They are generally poor in nitrogen and potash (making 2 incorrect) and are found in tropical regions with high rainfall, not Rajasthan (making 3 incorrect).
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Sandy soil
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Black soil
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Red soil
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Laterite soil
B
Correct answer
Explanation
Black soil is best suited for growing cotton.
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Alluvial
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Black
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Mountain
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Delta
C
Correct answer
Explanation
Tea and coffee plantations require well-drained, slightly acidic, and nutrient-rich soil, which is typically found in hilly or mountainous regions.
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alluvial
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laterite
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black
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red
C
Correct answer
Explanation
Black soil, also known as regur soil, has high clay content and is known for its self-ploughing property, where it swells when wet and develops deep cracks when dry.
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black or regur
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lateritic
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alluvial
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none of these
B
Correct answer
Explanation
Lateritic soil is formed in tropical regions with high temperatures and heavy rainfall, which leads to intense leaching of silica and leaves behind iron and aluminum oxides.
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Andhra Pradesh
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Karnataka
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Tamil Nadu
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All of the above
D
Correct answer
Explanation
Red soil is widely distributed across several states in India, including significant portions of Andhra Pradesh, Karnataka, and Tamil Nadu, due to the weathering of ancient crystalline rocks.
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Black soil and cold climate
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Red soil and cold climate
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Black soil and warm climate
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Red soil and warm climate
C
Correct answer
Explanation
Cotton plant is grown in black soil and at places with warm climate, as it needs higher temperature for growth and good yield.
A
Correct answer
Explanation
Cotton plant is grown in black soil and at places with warm climate.
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Flasks
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Crumbs
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Lumps
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Soil stones
B
Correct answer
Explanation
The big pieces of the soil in the ploughed field are known as crumbs.
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Maharashtra
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Madhya Pradesh
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Andhra Pradesh
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West Bengal
A
Correct answer
Explanation
Laterite soil is found in regions with high rainfall and temperature, such as the Western Ghats in Maharashtra, Kerala, and Karnataka.
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Burnt horse dung helps open pores in the soil.
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To give the item strength.
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It helps in retaining the shape easily.
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None of these
A
Correct answer
Explanation
It helps open pores so that water percolates out, evaporates and cools the water inside.
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a only
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b only
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c only
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a and b
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a, b and c
B
Correct answer
Explanation
This is the correct answer.
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Alluvial soil
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Black soil
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Arid soil
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Peaty soil
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Forest soil
A
Correct answer
Explanation
This is the correct answer.