Improvement in Food Resources (खाद्य संसाधनों में सुधार) Ch(12) Practice Quiz in Hindi Part – 2 || Class 9 Science Practice Quizzes in English Posted on February 28, 2025February 28, 2025 by Anshul Gupta0% 0 votes, 0 avg 0 Improvement in Food Resources (खाद्य संसाधनों में सुधार) Ch(12)Practice Quiz in Hindi Part – 2 || Class 9 Science Practice Quizzes in English 1 / 201. Which of the following is NOT a factor for variety improvement in crops? A. Improved quality B. Lower yield C. Biotic and abiotic resistance D. Wider adaptability Explanation: Crop variety improvement aims to achieve higher yields, among other factors like improved quality, resistance to biotic and abiotic stresses, and wider adaptability. 2 / 202. How many nutrients are supplied to plants by air, water, and soil? A. 15 B. 10 C. 13 D. 12 Explanation: Plants require a total of 15 nutrients, with air providing carbon and oxygen, water providing hydrogen, and soil supplying the remaining 13 nutrients. 3 / 203. What is the correlation between higher inputs and yields in farming? A. Inverse correlation B. No correlation C. Direct correlation D. Neutral correlation Explanation: Higher inputs in farming, such as quality seeds, fertilizers, and irrigation, generally lead to higher yields. 4 / 204. What are nutrients required by plants in large quantities called? A. Macro-nutrients B. Micro-nutrients C. Trace elements D. Vitamins Explanation: Nutrients needed in larger amounts are called macro-nutrients, while those needed in smaller quantities are micro-nutrients. 5 / 205. Which of the following is NOT a level of production practice in agriculture? A. Medium cost production B. High cost production C. Low cost production D. No cost production Explanation: Production practices are categorized into no cost, low cost, and high cost based on the financial inputs involved. 6 / 206. Which of the following is NOT a factor in the higher yields of high-cost farming? A. Quality seeds B. Weeds C. Fertilizers D. Irrigation Explanation: Weeds are unwanted plants that compete with crops for resources. 7 / 207. What does shorter crop duration from sowing to harvesting mean for farmers? A. More economical variety B. Less economical variety C. No impact on economy D. Increased cost of crop production Explanation: A shorter crop duration reduces the overall cost of production and allows farmers to grow multiple rounds of crops in a year. 8 / 208. What is the purpose of growing plants like sun hemp before sowing crops? A. To create green manure B. To provide shade C. To attract pollinators D. To control weeds Explanation: Plants like sun hemp are grown and then mulched into the soil to create green manure, which enriches the soil with nitrogen and phosphorus. 9 / 209. What is the name of the process using earthworms to speed up decomposition? A. Composting B. Vermi-composting C. Fertilization D. Green manuring Explanation: Vermi-composting utilizes earthworms to accelerate the breakdown of organic matter. 10 / 2010. What is the term for unwanted plants in a cultivated field? A. Pathogens B. Weeds C. Pests D. Crops Explanation: Weeds are undesirable plants that compete with crops for resources.11 / 2011. What is the term for farming with minimal or no use of chemicals? A. Industrial farming B. Chemical farming C. Conventional farming D. Organic farming Explanation: Organic farming focuses on using natural inputs like manure and bio-agents instead of synthetic chemicals. 12 / 2012. What is the process of decomposing farm waste material in pits called? A. Green manuring B. Composting C. Irrigation D. Fertilization Explanation: Composting is the method of decomposing organic waste to create nutrient-rich manure. 13 / 2013. What is the term for growing two or more crops simultaneously on the same piece of land? A. Intercropping B. Monoculture C. Mixed cropping D. Crop rotation Explanation: Mixed cropping involves growing multiple crops together in the same field. 14 / 2014. What are commercially produced plant nutrients called? A. Fertilizers B. Manure C. Compost D. Pesticides Explanation: Fertilizers are commercially produced to provide specific nutrients to plants. 15 / 2015. What is the benefit of dwarfness in cereals? A. Less nutrient consumption B. Increased susceptibility to diseases C. No impact on nutrient consumption D. Increased nutrient consumption Explanation: Dwarfness in cereals is a desirable trait as it reduces the amount of nutrients consumed by the plants. 16 / 2016. What is the term for growing two or more crops simultaneously in a definite pattern? A. Intercropping B. Monoculture C. Mixed cropping D. Crop rotation Explanation: Intercropping is a specific type of mixed cropping where crops are grown in a distinct pattern. 17 / 2017. What is the term for growing different crops on a piece of land in a pre-planned succession? A. Intercropping B. Monoculture C. Mixed cropping D. Crop rotation Explanation: Crop rotation involves a planned sequence of different crops grown on the same land over time.18 / 2018. What is the purpose of introducing a gene into a crop for improvement? A. To reduce crop yields B. To increase susceptibility to diseases C. To hinder product quality D. To create genetically modified crops Explanation: Introducing a gene into a crop can result in genetically modified crops with enhanced characteristics. 19 / 2019. Which of the following is NOT a macro-nutrient for plants? A. Iron B. Phosphorus C. Potassium D. Nitrogen Explanation: Iron is a micro-nutrient, while nitrogen, phosphorus, and potassium are macro-nutrients. 20 / 2020. What is the main advantage of using manure over fertilizers? A. It protects the environment B. It is commercially produced C. It harms micro-organisms in the soil D. It provides higher levels of specific nutrients Explanation: Manure is a natural and eco-friendly way to enrich the soil, while fertilizers can have negative environmental impacts. Please insert your information to see your ranking अपनी Ranking जानने के लिए कृपया अपनी जानकारी भरे NamePhone Number Your score isThe average score is 0% 0% Restart quiz Category: Class 9 Science Quizzes in English
