Interactive map showing distribution of major soil types across India (Alluvial, Black, Red, Laterite).
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Which Indian soil type is known for its 'self-ploughing' capacity?
Options: Alluvial Soil, Black Soil (Regur), Red Soil, Laterite Soil
Answer: Black Soil (Regur) — Black soil develops deep cracks during the dry season, which is referred to as 'self-ploughing' capacity.
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Khadar and Bhangar are sub-types of which soil?
Options: Alluvial Soil, Black Soil, Red Soil, Laterite Soil
Answer: Alluvial Soil — Khadar (new alluvium, near riverbeds) and Bhangar (old alluvium, above flood levels containing Kankar nodules) are sub-types of Alluvial soil.
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The red color of Red Soil is due to the presence of:
Options: Iron Oxide (Fe₂O₃), Calcium Carbonate, Aluminum Oxide, Potash
Answer: Iron Oxide (Fe₂O₃) — Red soil gets its distinctive red color from the diffusion of iron oxide (Fe₂O₃). It appears yellow when hydrated.
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Which of the following soils covers the largest area of India?
Options: Alluvial Soil (~40%), Black Soil (~15%), Red & Yellow Soil (~18%), Laterite Soil
Answer: Alluvial Soil (~40%) — Alluvial soil covers approximately 40% of India's total land area, making it the most widespread.
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