{
  "quizTitle": "CBSE Class VIII - Crop Production and Management",
  "quizCategory": "CBSE Class VIII",
  "quizSubject": "Science",
  "questions": [
    {
      "questionText": "Which of the following is categorized as a Kharif crop in India?",
      "options": [
        "Wheat",
        "Gram",
        "Paddy (Rice)",
        "Mustard"
      ],
      "correctOptionIndex": 2,
      "explanationText": "Kharif crops are sown during the rainy season (June to September). Paddy, maize, soyabean, groundnut, and cotton are key Kharif crops, whereas wheat and mustard are Rabi crops.",
      "hint": "Think of crops grown primarily during the monsoon season from June to September."
    },
    {
      "questionText": "What is the primary purpose of tilling or ploughing the soil before sowing?",
      "options": [
        "To kill earthworms and helpful microbes",
        "To loosen and aerate the soil so roots can penetrate deeply",
        "To wash away excess mineral nutrients",
        "To make the soil completely dry and hard"
      ],
      "correctOptionIndex": 1,
      "explanationText": "Loosening the soil allows the roots to breathe easily even when they go deep into the soil. It also aids the growth of earthworms and beneficial soil microorganisms.",
      "hint": "Roots need aeration and easy penetration through loose soil."
    },
    {
      "questionText": "Which traditional tool or modern machine is used to remove weeds from crop fields?",
      "options": [
        "Khurpi / Weedicide sprayer",
        "Harvester",
        "Combine",
        "Silo"
      ],
      "correctOptionIndex": 0,
      "explanationText": "Weeding is done manually with the help of a Khurpi or mechanically using a seed drill, as well as by spraying chemical weedicides like 2,4-D.",
      "hint": "It is a hand-held blade tool commonly used in Indian farming."
    },
    {
      "questionText": "Which modern irrigation system is best suited for water-deficient sandy regions?",
      "options": [
        "Moat (pulley system)",
        "Drip irrigation system",
        "Chain pump",
        "Relief flooding"
      ],
      "correctOptionIndex": 1,
      "explanationText": "In a drip system, water falls drop by drop directly near the roots, eliminating water wastage. It is a boon in regions where water availability is poor.",
      "hint": "Water falls drop by drop precisely at the root zone."
    }
  ]
}