Improvement in Food Resources Class 9 Worksheet Science Chapter 12

Multiple Choice Questions

Q1. Which of the following is a Kharif crop?
(a) Wheat
(b) Mustard
(c) Soyabean
(d) Gram

Q2. What is the main objective of crop variety improvement?
(a) To increase water availability
(b) To make crops resistant to diseases
(c) To reduce the maturity duration
(d) All of the above

Q3. Which farming practice involves growing two or more crops in definite row patterns?
(a) Mixed farming
(b) Intercropping
(c) Crop rotation
(d) Agroforestry

Q4. What is a major challenge in composite fish culture?
(a) Increased fish yield
(b) Availability of good-quality fish seed
(c) High water consumption
(d) Overfishing

Q5. Which nutrient is supplied by air to plants?
(a) Nitrogen
(b) Phosphorus
(c) Carbon
(d) Potassium

Q6. What is the primary purpose of cross-breeding in cattle farming?
(a) To increase milk production
(b) To improve resistance to diseases
(c) To improve meat quality
(d) To improve lactation period

Q7. What is the process of composting?
(a) Growing plants to enrich the soil
(b) Decomposition of waste materials in pits
(c) Using fertilizers to improve soil quality
(d) The use of pesticides to protect crops

Q8. Which type of manure is prepared by using earthworms?
(a) Green manure
(b) Compost
(c) Vermi-compost
(d) Bio-manure

Q9. Which of the following is a method used to increase food production in India?
(a) Green Revolution
(b) White Revolution
(c) Both a and b
(d) None of the above

Q10. What is the main aim of organic farming?
(a) To increase the use of chemical fertilizers
(b) To use minimal or no chemicals and maximum organic manures
(c) To focus on large-scale production
(d) To use genetically modified crops

Q11. Which of the following crops is an example of a Rabi crop?
(a) Pigeon pea
(b) Cotton
(c) Wheat
(d) Maize

Q12. What is a key feature of composite fish culture?
(a) It involves only one species of fish
(b) It uses multiple species with different food habits
(c) It requires a high salt concentration
(d) It is only done in marine waters

Q13. What type of irrigation is most commonly used in India?
(a) Canal irrigation
(b) Rain-fed irrigation
(c) River irrigation
(d) Wells

Q14. What is the primary goal of nutrient management in crops?
(a) To increase the water supply
(b) To improve plant growth
(c) To enhance soil fertility
(d) Both b and c

Q15. What is the role of bees in agriculture?
(a) Pollination
(b) Honey production
(c) Pest control
(d) All of the above

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Fill in the blanks

1. Matter is made up of small ______.

2. The forces of attraction between the particles are ______ in solids, ______ in liquids, and ______ in gases.

3. ______ is the change of gaseous state directly to solid state without going through liquid state.

4. In intercropping, crops are grown in ______ patterns.

5. The process of composting involves the decomposition of organic waste in ______.

6. ______ is the method of enriching soil by growing certain plants and then ploughing them into the soil.

7. ______ is a popular marine fish caught off the Indian coastline.

8. Organic farming focuses on using minimal or no ______ and maximum organic manures.

9. The process of hybridization involves the crossing of ______ plants.

10. Fish farming in freshwater is known as ______.

11. ______ are essential nutrients required by plants in large quantities.

12. Crop rotation involves the growing of different crops in a pre-planned ______.

13. ______ is the main source of protein from fish.

14. In cattle farming, animals used for milk production are called ______.

15. ______ is the management of livestock for the purpose of breeding, feeding, and disease control.

Very Short Answer Question 

Q.1. What has green revolution led to? 

Q.2. What has white revolution led to?

Q.3. Name the two factors on which food security depends.

Q.4. What should we do for a sustained livelihood?

Q.5. Which food items primarily supply proteins?

Q.6. Name any two fodder crops.

Q.7. What is the duration of Kharif season?

Q.8. What is the duration of Rabi season?

Q.9. What is the name given to crops obtained by introducing a gene that provides the desired characteristic?

Q.10. What is the main benefit of mixed cropping?

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Short Answer Types Questions

Q.1. What are the hazards of using fertilizers?

Q.2. What are the main practices involved in keeping of animals or animal husbandry?

Q.3. How do good animal husbandry practices benefit farmers?

Q.4. What is hybridization?

Q.5. For increasing production, what is common in poultry, fisheries and bee-keeping?

Q.6. How do biotic and abiotic factors affect crop production?

Q.7. What factors may be responsiblefor losses of grains duringstorage?

Q.8. Why should preventive measures and biological control methods bepreferred for protecting crops?

Q.9. What is pasturage and how is it related to honey production?

Q.10. Differentiate between compost and vermicompost.

You can find Worksheets Solutions here: Worksheet Solutions: Improvement in Food Resources