CBSE Class 9 Science Improvement In Food Resources Worksheet Set A

Read and download free pdf of CBSE Class 9 Science Improvement In Food Resources Worksheet Set A. Students and teachers of Class 9 Science can get free printable Worksheets for Class 9 Science in PDF format prepared as per the latest syllabus and examination pattern in your schools. Standard 9 students should practice questions and answers given here for Science in Grade 9 which will help them to improve your knowledge of all important chapters and its topics. Students should also download free pdf of Class 9 Science Worksheets prepared by school teachers as per the latest NCERT, CBSE, KVS books and syllabus issued this academic year and solve important problems provided here with solutions on daily basis to get more score in school exams and tests

Improvement In Food Resources Class 9 Science Worksheet Pdf

Class 9 Science students should refer to the following printable worksheet in Pdf for Improvement In Food Resources in standard 9. This test paper with questions and answers for Grade 9 Science will be very useful for exams and help you to score good marks

Class 9 Science Worksheet for Improvement In Food Resources

CBSE Class 9 Science Worksheet - Improvement in Food Resources (1). Students can download these worksheets and practice them. This will help them to get better marks in examinations. Also refer to other worksheets for the same chapter and other subjects too. Use them for better understanding of the subjects.

1.

Name two weeds which compete for food, space and light with the main crop.

2.

Give one advantage of building small check dams to stop the rain water from flowing away.

3.

Plants get carbon, oxygen and hydrogen from_____________________ and ____________________.

4.

Name the revolutions to increase food and milk production.

TWO MARKS QUESTIONS

5.

Define hybridization and its types.

6.

Enumerate two differences between mixed cropping and intercropping.

7.

Give two advantages of using manure over fertilizer.

8.

State any four factors for which crop variety improvement is done.

9.

Define the term photoperiod. State its significance.

THREE MARKS QUESTIONS

10.

Mention the three different ways in which crop plants can be attacked by insect pests. Suggest one control measure and two preventive measures against pests.

11.

What is irrigation? Explain any two kinds of water resources available to supply water for irrigation.

12. Farmers should use quality seeds, adopt irrigation, use fertilizer if needed and use crop protection measures. Justify the statement giving reasons. FIVE MARKS QUESTIONS

13. a) Differentiate between macro nutrients and micro nutrients. b) Briefly describe the formation of compost. What is vermi-compost? c) Name the plants used as green manure and the nutrients they supply to the soil.

14. Mr.Raghuveer singh has 30 cents of land and still believes in joint family system so his two sons with their families live together. Earlier the land gave good yield of crops now the yield has drastically reduced. His grandson showed these two methods of cropping patterns (farming) as a solution. a) Identify the two methods shown in the fig. A & B. b) State the advantages of these two methods. c) Comment on the suggestions given by his grandson. d) Explain organic farming. FIG. (A) FIG. (B)

1.

Which one is not a source of carbohydrate? a) Rice b) Millets c) Sorghum d) Gram __________________________________.

2.

State two objectives of organic farming. ___________________________

 

3. Choose the correct options given about manure: (i) Manure contains large quantities of organic matter and small quantities of nutrients. (ii) It increases the water holding capacity of sandy soil. (iii) It helps in draining out of excess of water from clayey soil. (iv) Its excessive use pollutes environment because it is made of animal excretory waste. (a) (i),(ii)& (iv) (b) (i), (iii)&(iv) (c) (i),(ii) and (iii) (d) only(iv) __________________________________

4.

What are weeds? Mention any two methods of preventing the growth of weeds? _________________________________

5.

Fill in the blanks : (a) Kharif crops are cultivated from _________________________to __________________________. (b) Rabi crops are cultivated from _____________________to______________________________. (c) Paddy, maize, green gram, soyabean, cotton, pigeon pea, ground nut and black gram are ________________crops. (d) Wheat, gram, pea, mustard, linseed, barley, potato, tomato, cumin, oat and fenugreek are _______________ crops.

 

6. What is a GM crop? Name any one such crop which is grown in India. ____________________________________________________________

 

State the two major factors to be considered while aiming for optimum yields in crop production. _______________________________

8. FIG: A FIG:B FIG:C Arvind returned to his village in agra after completing his M.Sc in Agricultural sciences. He saw the condition of the storage of food grains shown in fig.A. He suggested the simple method shown in fig.B as immediate remedial method but later after educating farmers, he wants to at least introduce the method shown in fig.C. a) List the two factors responsible for the loss of food grains shown in fig.A. ______________

b) Give two values which are inculcated in Arvind’s attitude towards the villagers. _______________________ 

c) List two preventive and control measures to be used before grains are stored for future use in fig.C. ______

 

Please click the link below to download CBSE Class 9 Science Worksheet - Improvement in Food Resources (1).

More Study Material