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Q 1. Horticulture deals with
Production of crops
Breeding of animals
Study of soil
Production of fruits and vegetables
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Q 2. Which one of the following is not true about ploughing –
Loosens the soil
Aerates the soil
Makes the soil hard
Allows easy penetration of roots into the soil
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Q 3. Separating the grain from chaff is called –
Winnowing
Hybridisation
Threshing
Harvesting
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Q 4. Organic substances obtained from the decomposition of dead plants and animals wastes are called –
Fertiliser
NPK
Herbicide
Manure
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Q 5. Biological methods of pest control involve –
Spraying chemicals to kill plants
Killing pests by using other organisms
Spraying DDT
Weeding
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Q 6. Which one of the following is not a method to maintain the fertility of soil
Crop rotation
Multiple cropping
Fallow method
Ploughing
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Q 7. Which of the following machines would you use to harvest a crop as well as to beat out the grains from the chaff?
Mechanical harvester
Combine
Thresher
Harrow
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Q 8. Transplantation is –
Process of scattering the seed
Process of loosening and turning of soil
Process of shifting of tiny saplings from the nursery to a field
None of these
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Q 9. Chemical substances which are used to kill insects –
Fungicide
Insecticide
Weedicide
All of these
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Q 10. Process of cutting of crop after its maturation –
Threshing
Harvesting
Winnowing
None of these
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Q 11. Which of the following is not a method of irrigation?
Drip irrigation
Sprinkler
Nursery
Canals
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Q 12. The unwanted wild plants growing along with the crop plants are called –
Seedlings
Weeds
Minor crops
Grasses
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Q 13. The science of improving crop varieties is called –
Plant breedling
Hybridization
Selection
Introduction
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Q 14. Which one of the following cause(s) plant diseases?
Viruses
Bacteria
Fungi
All of these
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Q 15. The big pieces of soil in the ploughed field are called
Crumbs
Flakes
Lumps
All of these
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Q 16. Rearing and breeding of fish in pond and tank is called –
Aquaculture
Fishing
Pisciculture
Apiculture
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Q 17. Broilers are maintained for getting –
Milk
Egg
Meat
Leather
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Q 18. Males of honey bee colony are called –
Drone
Workers
Soldiers
All of these
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Q 19. Cattle feed should contain –
Roughage
Concentrate
Both
None of these
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Q 20. Which of the following should come in the box 'X' in the given sequence ?
Ploughing → Levelling → manuring → Sowing seeds → X
Broadcasting
Transplanting
Irrigation
Drilling
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Q 21. Which of the following crops would enrich the soil with nitrogen ?
Apple
Pea
Paddy
Potato
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Q 22. Eutrophication means :
toxication of water by fertilisers
decrease the growth of algae
increase in the fertility of the soil
all of the above
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Q 23. Besides carbon, hydrogen and oxygen, the synthesis of proteins by plants require :-
I. Magnesium II. Nitrogen III. Potassium
I only
III only
II only
II and III only
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Q 24. Nitrogen-fixing bacteria can be found in :
I. soil
II. root nodules
III. leaves
I only
I and II only
II and III only
I, II and III
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Q 25. Which of the following crops seedlings need to be transplanted ?
Wheat
Potato
Mustard
Rice