Class 9 Practice Level 2 - Improvement in Food Resources - Set 1

Total questions: 25

Which technique is commonly used to develop high-yielding and disease-resistant crop varieties?

Topic: Crop Variety Improvement

Hybridization

Monoculture

Organic farming

Biodynamic farming

None

Which of the following is a primary macronutrient required by plants?

Topic: Nutrient Management

Boron

Copper

Nitrogen

Molybdenum

None

In dairy farming, which breed of cow is known for its high milk yield?

Topic: Animal Husbandry

Jersey

Angus

Hereford

Shorthorn

None

Which irrigation technique is most suitable for sandy soils with high water infiltration rates?

Topic: Irrigation Techniques

Surface irrigation

Drip irrigation

Sprinkler irrigation

Furrow irrigation

None

Which practice is commonly avoided in organic farming?

Topic: Organic Farming

Crop rotation

Use of synthetic pesticides

Green manure application

Biological pest control

None

: What is the main advantage of integrated pest management (IPM)?

Topic: Crop Protection Management

Promotes the use of chemical pesticides only

Increases pest resistance

Reduces environmental impact and promotes sustainable pest control

Eliminates the need for any pest control measures

None

Which fish species is commonly cultured in freshwater aquaculture systems?

Topic: Aquaculture

Salmon

Tuna

Tilapia

Cod

None

What is the main goal of sustainable agriculture?

Topic: Sustainable Agriculture

Maximize short-term profits

Deplete natural resources

Maintain long-term productivity and environmental health

Increase the use of synthetic inputs

None

Which soil amendment is known for improving soil structure and increasing water retention?

Topic: Soil Fertility

Urea

Gypsum

Compost

Lime

None

10.

Which benefit is associated with mixed cropping?

Topic: Mixed Cropping

Increased dependence on chemical inputs

Reduced soil erosion and improved soil health

Increased pest and disease incidence

Increases the risk of crop failure

None

11.

What is a major advantage of genetically modified (GM) crops?

Topic: Genetic Engineering

Reduced nutritional value

Increased resistance to pests and diseases

Higher use of pesticides

Decreased crop yield

None

12.

What is the primary function of phosphorus in plant growth?

Topic: Fertilizers

Promotes leaf growth

Enhances root development and flowering

Increases chlorophyll production

Reduces water uptake

None

13.

Which microorganism is commonly used in biofertilizers to fix atmospheric nitrogen?

Topic: Biofertilizers

Azotobacter

Lactobacillus

Saccharomyces

Rhizopus

None

14.

How does crop rotation benefit soil health?

Topic: Crop Rotation

Increases soil salinity

Reduces soil nutrient depletion

Promotes soil compaction

Increases pest population

None

15.

Which practice is essential for maintaining animal health in husbandry?

Topic: Animal Husbandry

Overcrowding livestock

Providing balanced nutrition and regular veterinary care

Using only synthetic feeds

Avoiding vaccination

None

16.

Which type of earthworm is commonly used in vermicomposting?

Topic: Vermicomposting

Lumbricus terrestris

Eisenia fetida

Allolobophora chlorotica

Octolasion cyaneum

None

17.

What is aquaponics?

Topic: Aquaponics

Growing plants in soil

Raising fish and growing plants together in a symbiotic environment

Using chemical fertilizers

Practicing monoculture

None

18.

What is a common method of managing crop residues sustainably?

Topic: Crop Residue Management

Burning the residues

Incorporating residues into the soil as organic matter

Disposing of residues in landfills

Using residues to increase weed growth

None

19.

Which practice helps in reducing soil erosion on hilly terrains?

Topic: Soil Conservation

Overgrazing

Terrace farming

Monocropping

Deforestation

None

20.

Which disease is commonly vaccinated against in poultry farming to prevent significant losses?

Topic: Poultry Farming

Foot and mouth disease

Newcastle disease

Rinderpest

Swine flu

None

21.

What is the importance of conserving genetic resources in agriculture?

Topic: Genetic Resources

To increase the use of chemical inputs

To preserve biodiversity and provide a pool of genetic material for future crop improvement

To promote monoculture

To reduce crop diversity

None

22.

Which nutrient solution concentration is typically used in hydroponics for optimal plant growth?

Topic: Hydroponics

1-2%

10-15%

20-25%

50-60%

None

23.

What is the primary food source for silkworms in sericulture?

Topic: Sericulture

Bamboo leaves

Mulberry leaves

Rice straw

Grass

None

24.

What is a key benefit of agroforestry?

Topic: Agroforestry

Increases soil erosion

Reduces biodiversity

Enhances soil fertility and provides multiple sources of income

Promotes monoculture

None

25.

Which plant disease is caused by a virus?

Topic: Plant Diseases

Powdery mildew

Rust

Mosaic disease

Blight

None

1 out of 25

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Class 9 Practice Level 2 - Improvement in Food Resources - Set 1

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