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Improvement In Food Resources Class NCERT Solutions

NCERT Solutions Class 9 Scinece Chapter 15 Improvement In Food Resources Download In Pdf

Chapter 15 Improvement In Food Resources Download In pdf

Download NCERT Solutions for Class 9 Science

Chapter 15 Improvement In Food Resources

(Link of Pdf file is given below at the end of the Questions List)

In this pdf file you can see answers of following Questions


NCERT Solutions Intext Questions Page no.204


Question 1. What do we get from cereals, pulses, fruits and vegetables?


NCERT Solutions Intext Questions Page no.205


Question 1. How do biotic and abiotic factors affect crop production?


Question 2. What are the desirable agronomic characteristics for crop improvements?


NCERT Solutions Intext Questions Page no.206


Question 1. What are macro-nutrients and why are they called macronutrients?


Question 2. How do plants get nutrients?


NCERT Solutions Intext Questions Page no.207


Question 1. Compare the use of manure and fertilizers in maintaining soil fertility.


NCERT Solutions Intext Questions Page no.208


Question 1. Which of the following conditions will give the most benefits? Why?
(a) Farmers use high-quality seeds, do not adopt irrigation or use fertilizers.
(b) Farmers use ordinary seeds, adopt irrigation and use fertilizer.
(c) Farmers use quality seeds, adopt irrigation, use fertilizer and use crop protection measures.


NCERT Solutions Intext Questions Page no.209


Question 1. Why should preventive measures and biological control methods be preferred for protecting crops?


Question 2. What factors may be responsible for losses of grains during storage?


NCERT Solutions Intext Questions Page no.210


Question 1.
Which method is commonly used for improving cattle breeds and why?


NCERT Solutions Intext Questions Page no.211


Question 1. What management practices are common in dairy and poultry farming?


Question 2.
What are the differences between broilers and layers and in their management?


Question 3. Discuss the implications of the following statement: “It is interesting to note that poultry is India’s most efficient converter of low fibre food stuff (which is unfit for human consumption) into highly nutritious animal protein food.”


NCERT Solutions Intext Questions Page no.213


Question 1. How are fish obtained?


Question 2. What are the advantages of composite fish culture?


Question 3. What are the desirable characters of bee varieties suitable for honey production?


Question 4. What is pasturage and how is it related to honey production?


NCERT Solutions Exercises Questions


Question 1. Explain any one method of crop production which ensures high yield.


Question 2. Why are manure and fertilizers used in fields?


Question 3. What are the advantages of inter-cropping and crop rotation?


Question 4. What is genetic manipulation? How is it useful in agricultural practices?


Question 5. How do storage grain losses occur?


Question 6. How do good animal husbandry practices benefit farmers?


Question 7. What are the benefits of cattle farming?


Question 8. For increasing production, what is common in poultry, fisheries and bee-keeping?


Question 9. How do you differentiate between capture fishing, mariculture and aquaculture?


 


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