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.

The correct answer is (d) Crop transportation management. Crop transportation deals with the movement of harvested crops, not yield improvement. In contrast, crop variety improvement, production improvement and protection management directly enhance crop growth, quality and resistance to diseases or ...

The correct answer is:(b) Iron Fertilizers mainly provide macro-nutrients like Nitrogen (N), Phosphorus (P), and Potassium (K), which are essential for plant growth. Iron (Fe) is a micro-nutrient, usually obtained from the soil rather than being a major component of ...