The NCERT Solutions for Class 9 Science Chapter 12 Improvement in Food Resources deals with improving agricultural productivity and food security. It explains topics such as crop improvement, improved crop varieties, irrigation practices, and various cropping patterns. Animal husbandry, such as cattle farming and poultry, is also described in the chapter. Students can understand all the concepts easily that are explained in the NCERT Solutions. Knowing the topics helps students build a strong foundation for higher classes and to perform well in the exams.
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Download Improvement in Food Resources Class 9 Questions and Answers PDF
Get Class 9 Science Chapter 12 Improvement in Food Resources Question Answer (In-text Exercises)
Access Class 9 Science Improvement in Food Resources Question Answer (Chapter-end Exercises)
Approach to Solve Improvement in Food Resources Class 9 Question Answer
Important Topics of Class 9 NCERT Science Chapter 12 Improvement in Food Resources
Important Questions from NCERT Class 9 Science Chapter 12 Improvement in Food Resources
What will You Learn from the Improvement in Food Resources NCERT Solutions?
Why Class 9 Science Chapter 12 Improvement in Food Resources NCERT Solutions are Important?
NCERT Chapter-Wise Solutions for Class 9 Science
NCERT Solutions for Class 9 Science Chapter 12 Improvement in Food Resources
Improvement in Food Resources Class 9 question answers is useful for quick revision and following the NCERT guidelines closely. They also help students understand how natural resources can be managed efficiently to support better food production. Sustainable farming methods are also explained in a simple way for easy understanding. The Improvement in Food Resources Class 9 questions and answers PDF builds a strong foundation for higher classes where food and agriculture are studied in more detail.
Download Improvement in Food Resources Class 9 Questions and Answers PDF
Students can download the PDF from the link below. This PDF can be accessed anytime without the internet. Studying through the Improvement in Food Resources Class 9 questions and answers PDF improves the preparation and helps in quick revision. The NCERT Solutions for Class 9 are provided in simple language to explain concepts.
Get Class 9 Science Chapter 12 Improvement in Food Resources Question Answer (In-text Exercises)
Given below are the detailed answers to all the questions given in the chapter. Doing regular practice of the Class 9 Science Chapter 12 Improvement in Food Resources question answer provides knowledge about ways to improve crop yield.
Biotic factors such as insects, nematodes, and diseases reduce crop production. Insects feed on the crop, thus destroying it.
Abiotic factors are natural factors like temperature, salinity, and waterlogging, which also reduce crop production. Different crops require a different range of temperatures; hence, the wrong temperature can cause crop production to go down.
The essential elements that are required by the plants in large quantities are called macronutrients. The macronutrients are nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur.
Preventive measures and biological control methods are used as they are simple, not expensive, environmentally safe, and do not affect the soil quality.
These methods are also harmless to other forms of life. The main purpose is to protect the crop from disease-causing pathogens and weeds.
Some preventive measures are proper seedbed preparation, timely sowing of crops, intercropping, and crop rotation.
Crossbreeding is commonly used for improving cattle breeds. It is done between indigenous and exotic breeds for variety improvement.
The desired characteristics from both breeds are taken to produce a new, improved variety. An exotic breed, such as Jersey, has long lactation periods, while local breeds, such as Red Sindhi, are very resistant to diseases.
The two are cross-bred to get a calf with both the desired qualities.
Broilers are farmed for obtaining meat, whereas layers are farmed for eggs.
The housing, nutritional, and environmental requirements of broilers and layers are different. The daily food requirement for broilers is rich in protein with adequate fat.
The level of vitamins A and K is kept high in the poultry feeds. On the other hand, layers require enough space and lighting.
Composite fish culture is an intensive fish farming technique in which both local and imported fish species are used. A combination of five or six fish species having different types of food habits is used in a single fishpond such that they do not compete for food among them.
As a result, the food available in all parts of the pond is used, which increases the fish yield from the pond.
Pasturage refers to the flowers available to the bees for nectar and pollen collection.
It determines the quality of honey. Moreover, the kind of flowers determines the taste of the honey.
Access Class 9 Science Improvement in Food Resources Question Answer (Chapter-end Exercises)
All the questions, along with the detailed answers, are explained in detail below for better understanding. The Improvement in Food Resources class 9 question answers are prepared by subject experts in easy and clear language.
One method used for crop production that ensures high yield is:
Hybridisation: Crops from different areas are picked up with desired traits and then cross-bred. The crop with the desired characteristic is obtained. Also, a gene might be introduced that would provide the desired characteristic. This results in genetically modified crops
Inter-cropping is the growing of two or more crops simultaneously on the same field in a definite pattern. The crops are selected such that their nutrient requirements are different, ensuring maximum utilization of the nutrients supplied. This method prevents pests and diseases from one plant from spreading to other plants in a field. Thus, both crops give higher productivity.
Crop rotation is the growing of different crops on a piece of land in a pre-determined succession. The next crop to be cultivated depends on the availability of moisture and irrigation facilities. Its advantage is that two or three crops can be grown in a year with good harvests.
Genetic manipulation is a process of introducing a gene that would provide the desired characteristic, resulting in genetically modified crops.
Genetic manipulation is useful in agricultural practices by developing varieties having higher yields, better quality, shorter maturity period, and wider adaptability to adverse environmental conditions.
Capture fishing- Capture fishing refers to catching fish from natural waters.
Mariculture: Fish farming or culture fishing in marine waters is called mariculture. Varieties like tuna and prawns are cultivated in this method.
Aquaculture: Aquaculture is the farming of fish in controlled environments (freshwater, brackish, or marine)
Approach to Solve Improvement in Food Resources Class 9 Question Answer
The students should start by understanding concepts like crop production, protection, and animal husbandry before starting to solve the questions. Making notes on different methods of agricultural practices and their advantages will be useful. Practising all the in-text and exercise questions thoroughly will improve the knowledge of the chapter. Class 9 Science Chapter 12 Improvement in Food Resources question answer includes diagrams and flowcharts to explain processes clearly. Regular revision of the NCERT Solutions for Class 9 Science will test the understanding with example questions.
Important Topics of Class 9 NCERT Science Chapter 12 Improvement in Food Resources
The important topics are given below. Knowing the important topics gives preparation the right direction for the exam. To gain clarity on these topics, students can refer to the NCERT Solutions for Class 9 Science Chapter 12 Improvement in Food Resources.
Improvement in Crop Yields
Improving crop yield is essential to meet the food demands of a growing population. Various methods, such as developing high-yield varieties, irrigation systems, and pest control, are used to increase production and maintain soil fertility.
Crop Variety Improvement
Crop variety improvement is done through breeding and genetic modification to develop crops with disease resistance and better adaptability to environmental conditions. Hybridisation and genetically modified crops help improve productivity
Nutrient Management
Plants require nutrients like micronutrients and macronutrients for growth. These are supplied through manure and fertilizers to maintain soil fertility and improve crop production.
Irrigation
Irrigation provides adequate water to crops at different growth stages. Methods like canal systems, drip irrigation, sprinkler irrigation, and tube wells help ensure water availability while preventing water wastage.
Animal Husbandry
Animal husbandry refers to the care, breeding, and management of livestock like cattle, poultry, and fish. It also plays a vital role in food production by providing milk, meat, eggs, and fish, supporting both agriculture and the economy.
Fish Production
Fish farming or aquaculture provides a rich source of protein and essential nutrients. It includes two types, which are marine fisheries and inland fisheries.
Bee-keeping
Bee-keeping or apiculture involves rearing honeybees for honey and beeswax production. Beehives are maintained in gardens or forests. Apis indica is commonly used for large-scale honey production. It also helps in pollination and improving crop yields.
Also, check out the NCERT Books and NCERT Syllabus here:
Important Questions from NCERT Class 9 Science Chapter 12 Improvement in Food Resources
Given below is a question from this chapter, along with the answer. It is important to get familiar with the question pattern to score well in the exam. For this purpose, students can use the NCERT Solutions for Class 9 Science Chapter 12 Improvement in Food Resources.
Question 1. Name the Italian breed of honey bee.
A. Apis cerana B. Apis dorsata C. Apis mellifera D. Apis florea
Correct Answer: C. Apis mellifera
Explanation:
Apis mellifera, commonly known as the Western honey bee, is the Italian breed of honey bee. It is widely cultivated for honey production due to its high productivity and gentle nature. Originating from Europe, including Italy, this species is preferred by beekeepers around the world because of its efficient pollination and adaptability to different climates. Other species like Apis cerana and Apis dorsata are native to Asia and differ in behaviour and habitat.
Question 2:Which of the following is a freshwater fish?
A. Bombay duck B. Mackerel C. Rohu D. Tuna
Correct Answer: C. Rohu
Explanation:
Rohu is a freshwater fish commonly found in rivers and ponds in India. Bombay duck, Mackerel, and Tuna are primarily marine fish living in saltwater. Hence, Rohu is the correct freshwater species.
Question 3: The scientific name for buffalo is:
A. Bos indicus B. Bos bubalis C. Gallus gallus domesticus D. None of the above
Correct Answer: B. Bos bubalis
Explanation:
The domestic buffalo is scientifically named Bos bubalis. Bos indicus refers to zebu cattle, and Gallus gallus domesticus is the domestic chicken. Hence, the correct answer is Bos bubalis.
Question 4: Which of the following is the foreign breed of cattle?
A. Gyr B. Sindhi C. Jersey D. Sahiwal
Correct Answer: C. Jersey
Explanation:
Jersey is a foreign breed of cow that comes from Jersey Island in Europe. It gives milk with more cream and can live in different weather conditions. The other breeds, like Gyr, Sindhi, and Sahiwal, are Indian breeds.
Question 5: Which of the following is intercropping?
A. soyabean + maize B. wheat + mustard C. finger millet (bajra) + cowpea (lobia) D. Both a and c
Correct Answer: D. Both a and c
Explanation:
Intercropping means growing two or more crops together in the same field in a specific pattern. Examples like soybean with maize and finger millet with cowpea help make better use of soil and nutrients, reduce pests, and increase total crop yield.
Question 6: Which of the following nutrients is commonly deficient in Indian soils?
A. Nitrogen B. Phosphorus C. Potassium D. All of the above
Correct Answer: D.All of the above
Explanation: Indian soils are often deficient in nitrogen, phosphorus, and potassium (NPK) due to continuous farming and nutrient depletion. These nutrients are essential for plant growth, and their deficiency is usually corrected through fertilizers or manure.
Question 7: Hybridisation is a method used to:
A. Increase milk production B. Improve crop varieties C. Control pests D. Improve soil fertility
Correct Answer: B. Improve crop varieties
Explanation: Hybridisation involves crossing two genetically different plant varieties to produce a hybrid with desirable traits such as higher yield, disease resistance, early maturity, and better quality. It is one of the key techniques used in crop improvement programs.
What will You Learn from the Improvement in Food Resources NCERT Solutions?
Food is the basic need of every living being, and its proper production provides a healthy life. The chapter explains simple methods to increase productivity and manage resources wisely.
Students understand the role of crop improvement, irrigation, and cropping patterns in agriculture through the Class 9 Science Improvement in Food Resources question answer.
Knowledge of fertilizers, manures, and soil fertility is highlighted to improve crop yield.
Students will learn the concepts of mixed farming, intercropping, and crop rotation for sustainable food production.
Awareness about managing natural resources for food security and long-term benefits is also added.
Different practices of animal husbandry, including cattle farming, poultry, and fisheries, are explained step by step in the Improvement in Food Resources Class 9 question answer.
Why Class 9 Science Chapter 12 Improvement in Food Resources NCERT Solutions are Important?
The chapter teaches students about different methods which are used to improve the quality and quantity of food production. Various topics like crop variety improvement, animal husbandry, fisheries and poultry farming are covered.
Class 9 Science Chapter 12 Improvement in Food Resources NCERT Solutions helps students learn how different methods improve crop yield.
The solutions also build awareness about the importance of fertilizers, irrigation, and pest control.
All the topics covered in this chapter, like animal husbandry, improvement in production and crop yield, are useful in Class 11 and 12.
Understanding the solutions also allows students to think about food security and eco-friendly farming methods.
NCERT Chapter-Wise Solutions for Class 9 Science
Below are the solutions to all chapters included in class 9. Students will prepare for their exams and score well by using these solutions.
NCERT Solutions for Class 9 Chapter 12 Improvement in Food Resources
Frequently Asked Questions (FAQs)
Q: What is animal husbandry?
A:
Animal husbandry is the branch of agriculture concerned with animals that are raised for meat, fibre, milk, or other products.
Q: What are the benefits of using organic farming methods?
A:
Organic farming offers numerous benefits, including improved soil health, reduced environmental pollution, enhanced biodiversity, and potentially higher nutritional content in produce, while also promoting sustainable and resilient agricultural systems.
Q: How many questions are there in the NCERT Solutions for Class 9 Science Chapter 12 Improvement in Food Resources?
A:
At the end of the chapter, there are a total of 9 questions, in the NCERT Solutions for Class 9 Science Chapter 12 Improvement in Food Resources, along with some in text questions.
Q: Can studying this chapter help in understanding real-life applications?
A:
Absolutely, it helps students relate agricultural practices and food production improvements to daily life and modern farming techniques.
Q: How do plants get nutrients class 9?
A:
Nutrients for plants come from the soil, water, and air. There are sixteen nutrients that are necessary for plant growth. Air is a source of both carbon and oxygen. The soil provides the remaining thirteen nutrients.
Q: What are the different methods of irrigation discussed in Chapter 12?
A:
The NCERT Solutions for Class 9 Science Chapter 12 Improvement in Food Resources discusses various irrigation methods, including surface, sprinkler, drip, and sub-irrigation, each with its own advantages and disadvantages.
Q: What are the methods used to improve crop yields?
A:
Methods include the use of high-yielding varieties (HYVs), hybridization, proper irrigation, use of fertilizers and manures, crop rotation, inter-cropping, and pest control measures.
Q: What do we get from cereals, pulses, fruits, and vegetables?
A:
Cereals provide carbohydrates, which are the main source of energy. Pulses supply proteins necessary for growth and development. Fruits and vegetables provide vitamins, minerals, carbohydrates, proteins, and fats essential for overall health.
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