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Home/class 9th

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Suresh Sharma
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Suresh Sharma
Asked: February 11, 2025In: Class 9 Science

Growing two or more crops simultaneously on the same field in a definite pattern is called

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 ...

class 9thmcqscience
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Suresh Sharma
Poll
Suresh Sharma
Asked: February 11, 2025In: Class 9 Science

Find out the correct sentence about manure : (i) It increases the water holding capacity of sandy soil. (ii) It helps in draining out excess water from clayey soil. (iii) Manure contains large quantities of organic matter and small quantities of nutrients. (iv) Its excessive use pollutes environment as it is made of animal excretory waste.

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 ...

class 9thmcqscience
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Suresh Sharma
Poll
Suresh Sharma
Asked: February 11, 2025In: Class 9 Science

Which one of the following is not a micro-nutrient for plants?

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 ...

class 9thmcqscience
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Suresh Sharma
Poll
Suresh Sharma
Asked: February 11, 2025In: Class 9 Science

Which one of the following species of honey bee is an Italian species?

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 ...

class 9thmcqscience
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Suresh Sharma
Poll
Suresh Sharma
Asked: February 11, 2025In: Class 9 Science

Find out the correct sentence: (i) Cross between plants of two species is called intervarietal hybridisation. (ii) Cross between two varieties is called interspecific hybridisation. (iii) Hybridisation means crossing between genetically dissimilar plants. (iv) Introducing genes of desired character into a plant gives genetically modified crop.

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.

class 9thmcqscience
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