Class 9 Science Improvement in Food Resources

Class 9 Science Improvement in Food Resources

 

Class 9 Science Improvement in Food Resources Fill in the blanks , Multiple Choice Questions and True false .

 

Fill in the Blanks

 

1. All living organisms need food to grow and stay healthy.
2. The green revolution helped in increasing food grain production.
3. Paddy is a common crop grown during the kharif season.
4. Wheat is an example of a rabi crop.
5. Hybridisation involves crossing genetically dissimilar plants.
6. Manure is made by decomposing animal and plant waste.
7. Fertilizers are commercially made plant nutrients.
8. Macronutrients are needed in large amounts by plants.
9. Organic farming uses minimum or no chemical fertilizers and pesticides.
10. Irrigation helps in providing water to crops during dry seasons.
11. Mixed cropping involves growing two or more crops on the same field.
12. Weeds are unwanted plants that grow along with crops.
13. Dairy animals are mainly used for milk production.
14. Broilers are poultry birds raised for meat.
15. Bee-keeping provides us honey and wax.

Multiple Choice Questions (MCQs)

 

1. Which crop is grown in the kharif season?
a) Wheat
b) Gram
c) Paddy
d) Mustard
Ans: c) Paddy

 

2. What is the main source of carbohydrates?
a) Pulses
b) Cereals
c) Vegetables
d) Oilseeds
Ans: b) Cereals

 

3. Which one is a method of improving crop variety?
a) Composting
b) Hybridisation
c) Weeding
d) Irrigation
Ans: b) Hybridisation

 

4. What is the full form of GMO?
a) Genetically Modified Organism
b) Growth Mixed Output
c) General Medical Option
d) Genetic Multiplication Operation
Ans: a) Genetically Modified Organism

 

5. Which crop provides us with fats?
a) Maize
b) Gram
c) Sunflower
d) Rice
Ans: c) Sunflower

 

6. What are bio-fertilizers made of?
a) Chemicals
b) Plastics
c) Microorganisms
d) Insects
Ans: c) Microorganisms

 

7. Which system includes both farming and livestock?
a) Mixed farming
b) Crop rotation
c) Organic farming
d) Dairy farming
Ans: a) Mixed farming

 

8. Which is a good method to increase fish production?
a) Crop rotation
b) Composite fish culture
c) Irrigation
d) Bee-keeping
Ans: b) Composite fish culture

 

9. Which of these is not a macro-nutrient?
a) Nitrogen
b) Phosphorus
c) Zinc
d) Potassium
Ans: c) Zinc

 

10. What is used to kill pests on crops?
a) Compost
b) Herbicides
c) Fertilizers
d) Fungicides
Ans: d) Fungicides

 

11. Which is an exotic breed of cow?
a) Red Sindhi
b) Sahiwal
c) Jersey
d) Gir
Ans: c) Jersey

 

12. What is the main product of poultry farming?
a) Wool
b) Meat and eggs
c) Milk
d) Wax
Ans: b) Meat and eggs

 

13. The Indian bee used for honey production is:
a) Apis mellifera
b) Apis dorsata
c) Apis cerana indica
d) Apis florae
Ans: c) Apis cerana indica

 

14. What helps increase milk yield in cattle?
a) Short lactation period
b) Cross-breeding
c) Worms
d) Less feed
Ans: b) Cross-breeding

 

15. What is the process of turning green plants into fertilizer called?
a) Composting
b) Vermi-composting
c) Green manure
d) Fertilization
Ans: c) Green manure

 

True/False

 

1. Plants get all their nutrients from water. – False
2. Fertilizers improve soil structure. – False
3. Mixed cropping helps reduce risk of crop failure. – True
4. Composting is a method of creating manure. – True
5. Intercropping prevents pests from spreading. – True
6. Manure contains chemical nutrients only. – False
7. Organic farming increases pollution. – False
8. Good irrigation can increase crop yield. – True
9. Poultry farming is done only for eggs. – False
10. Fish farming is not possible in ponds. – False
11. Composite fish culture uses one type of fish only. – False
12. Bee-keeping requires a lot of money. – False
13. Cattle farming helps in milk and farm labour. – True
14. Diseases in animals reduce their productivity. – True
15. Crop rotation helps in maintaining soil fertility. – True