Question : The black soil of the Deccan Plateau lacks which of the following minerals?
Option 1: Phosphorus
Option 2: Potash
Option 3: Iron
Option 4: Lime
Correct Answer: Phosphorus
Solution : The correct answer is Phosphorus.
The black soil is also known as regur or black cotton soil. The soil is clayey and rich in lime, iron, magnesium, calcium carbonate and potash but it lacks phosphorus, nitrogen and organic matter. The soil can retain moisture for a long period which helps the crop to grow during the hot season. They generate cracks during the dry season and become sticky during the wet.
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Question : Which of the following is not a part of the Peninsular Plateau?
Option 1: The Deccan Plateau
Option 2: The Central Highland
Option 3: The Northern Plain
Option 4: The North-eastern Plateau
Question : Which of the following statements regarding the Deccan Plateau is correct?
Option 1: The Deccan Plateau has almost the same height throughout its expanse
Option 2: The Deccan Plateau is higher on the east and west ends and slopes towards the centre
Option 3: The Deccan Plateau is higher in the west and slopes gently eastwards
Option 4: The Deccan Plateau is higher in the east and slopes gently westwards
Question : Which of the following types of soil is best suited for cotton cultivation ?
Option 1: Black
Option 2: Red
Option 3: Laterite
Option 4: Mountain
Question : Which of the following are the main components of stainless steel?
Option 1: Iron and carbon
Option 2: Silver
Option 3: Iron, chromium and nickel
Option 4: Iron and nickel
Question : Which of the following pairs of chemical elements and their symbols is incorrect?
Option 1: Phosphorus – P
Option 2: Potassium – Po
Option 3: Iron – Fe
Option 4: Iodine – I
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