The correct answer is:(c) Intercropping Intercropping is the practice of growing two or more crops simultaneously on the same field in a definite pattern (e.g., in alternate rows or strips). It helps in better resource utilization, pest control, and soil ...

The correct answer is:(d) (i) and (iii) Manure improves the water-holding capacity of sandy soil by increasing its organic matter. Manure is rich in organic matter but contains small amounts of nutrients compared to chemical fertilizers. Class 9th Science NCERT ...

The correct answer is:(b) Sulphur Sulphur is a macro-nutrient, required in relatively large amounts for plant growth. Zinc (Zn), Manganese (Mn) and Chlorine (Cl) are micro-nutrients, needed in smaller quantities but essential for plant functions. Class 9th Science NCERT MCQ ...

The correct answer is:(d) Apis mellifera Apis mellifera, commonly known as the European or Italian honey bee, is widely used in beekeeping for its high honey production and gentle nature. Class 9th Science NCERT MCQ Questions NCERT Books MCQ Questions ...

The correct answer is:(c) (iii) and (iv) Hybridisation involves crossing genetically dissimilar plants to combine desirable traits. Genetically modified crops are produced by introducing desired genes into plants. Class 9th Science NCERT MCQ Questions NCERT Books MCQ Questions Session 2024-2025.