Create a custom practice set
Pick category, difficulty, number of questions, and time limit. Start instantly with your own quiz.
Generate QuizGK Question
_______ soil is formed by the deposition of silt by rivers and is highly fertile.
- Black
- Red
- Alluvial
- Laterite
Answer: Alluvial
Alluvial soil is formed by the deposition of silt by rivers and is highly fertile. It covers about 40% of India's land area, especially in the Indo-Gangetic plains. It is rich in potash and phosphoric acid but deficient in nitrogen and organic matter.