Improvement in Food Resources
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Improvement in Crop Yields
SubtopicImprovement in Crop Yields under Improvement in Food Resources for Grade 9 CBSE.
Preview questions (no answers)
- 1.
The science of growing crops and raising livestock is generally known as:
A.Botany
B.Agriculture
C.Horticulture
D.Zoology
- 2.
Which of these is a desired agronomic characteristic for fodder crops?
A.Dwarfness
B.Profuse branching and tallness
C.No leaves
D.Short roots
- 3.
Excessive use of fertilizers can lead to which environmental problem?
A.Soil erosion
B.Water pollution
C.Global warming
D.Desertification
- 4.
Which of the following is a characteristic of 'Kharif' crops?
A.They are grown in winter
B.They include wheat and gram
C.They are grown during the rainy season
D.They require very little water
- 5.
Which cropping pattern involves growing different crops on a piece of land in a pre-planned succession?
A.Mixed cropping
B.Intercropping
C.Crop rotation
D.Monoculture
- 6.
A farmer is facing a problem where the grains in his storage are turning black and losing weight. Which factor is most likely responsible?
A.Excessive sunlight during storage
B.High moisture content and presence of fungi/pests
C.Lack of nitrogen in the storage bags
D.Use of too much fumigant
- 7.
Which of these is a micronutrient obtained by plants from the soil?
A.Potassium
B.Chlorine
C.Magnesium
D.Sulphur
- 8.
A farmer is looking for a way to improve the 'Quality' of his pulses. He should focus on increasing the content of which macronutrient in the soil to improve protein synthesis?
A.Calcium
B.Sulfur
C.Nitrogen
D.Chlorine
- 9.
Identify the incorrect pair of Crop and its common Pest.
A.Cotton - Bollworm
B.Wheat - Stem Borer
C.Rice - Gundhi bug
D.Mustard - Aphids
- 10.
Why is 'Boron' essential for the reproductive phase of flowering plants?
A.It is a central component of the chlorophyll molecule
B.It is required for pollen germination and the elongation of the pollen tube
C.It is necessary for the synthesis of Vitamin C
D.It helps the plant absorb more Nitrogen from the air
Download the worksheet for Improvement in Food Resources - Improvement in Crop Yields to practice offline. It includes additional chapter-level practice questions.
Crop Variety and Production Management
SubtopicCrop Variety and Production Management under Improvement in Food Resources for Grade 9 CBSE.
Preview questions (no answers)
- 1.
The science of improving crop varieties for better yield and disease resistance is part of:
A.Plant Breeding
B.Irrigation Management
C.Soil Erosion
D.Animal Husbandry
- 2.
Which of the following is supplied to the soil to improve its physical properties like drainage and aeration in clayey soils?
A.Chemical Fertilizers
B.Manure
C.Pesticides
D.Herbicides
- 3.
A major disadvantage of using fertilizers is that they can cause:
A.Water pollution
B.Faster decomposition of manure
C.Increase in soil organic matter
D.Improvement in soil structure
- 4.
If we grow Wheat and Mustard in the same field in separate rows, it is called:
A.Mixed cropping
B.Intercropping
C.Crop rotation
D.Monocropping
- 5.
The practice of 'Green Manuring' involves:
A.Adding green colored chemical powders to the soil
B.Growing and mulching certain plants into the soil before sowing the main crop
C.Painting the stems of plants with green nutrients
D.Irrigating the field with algae-rich water
- 6.
Which of the following is a characteristic of 'Manure'?
A.Prepared from inorganic salts
B.Very rich in plant nutrients like N, P, and K
C.Contains large quantities of organic matter
D.Manufactured in factories
- 7.
The use of 'Tube wells' for irrigation involves:
A.Collecting rainwater in open pits
B.Tapping water from deeper strata using pumps
C.Lifting water from rivers using wheels
D.Diverting water from main canals
- 8.
What is the primary role of 'Blue Green Algae' (BGA) when used as a bio-fertilizer in Paddy fields?
A.To decompose the rice straw after harvest
B.To fix atmospheric nitrogen into the soil
C.To increase the salinity of the water
D.To act as a pesticide against stem borers
- 9.
Which of the following describes a 'Mixed Cropping' scenario designed specifically to reduce risk in rain-fed areas?
A.Growing Soyabean and Maize in a 1:2 ratio
B.Growing Wheat and Bengal Gram together
C.Growing Paddy in one field and Wheat in another
D.Growing only Bt Cotton
- 10.
Why are 'Fodder Crops' like Berseem or Sudan grass bred for profuse branching as a desirable agronomic trait?
A.To produce more seeds for the next season
B.To provide more biomass/foliage for animal consumption
C.To prevent the plants from being eaten by insects
D.To allow the plants to grow taller than the trees
Download the worksheet for Improvement in Food Resources - Crop Variety and Production Management to practice offline. It includes additional chapter-level practice questions.
Nutrient Management (Manure and Fertilizer)
SubtopicNutrient Management (Manure and Fertilizer) under Improvement in Food Resources for Grade 9 CBSE.
Preview questions (no answers)
- 1.
Which of the following is a micronutrient essential for plants?
A.Nitrogen
B.Chlorine
C.Calcium
D.Phosphorus
- 2.
Organic matter in manure is also known as:
A.Humus
B.Salt
C.Urea
D.Pesticide
- 3.
What is a major difference between manure and fertilizers?
A.Manure is chemical, Fertilizer is organic
B.Manure is organic, Fertilizer is chemical
C.Manure provides more nutrients than fertilizer
D.Fertilizer improves soil texture better than manure
- 4.
Single Super Phosphate is a fertilizer mainly used to supply which nutrient?
A.Nitrogen
B.Potassium
C.Phosphorus
D.Iron
- 5.
Excessive use of fertilizers can lead to the acidification or alkalization of soil, which ultimately:
A.Helps plants grow faster
B.Decreases the long-term productivity of the land
C.Eliminates the need for manure
D.Increases the humus content
- 6.
In the context of nutrient management, what is the 'biological' advantage of using manure?
A.It provides a food source for soil organisms like earthworms
B.It makes the soil completely sterile
C.It increases the salt concentration for better osmosis
D.It prevents the growth of all fungi
- 7.
Which of the following is a micronutrient that aids in the formation of chlorophyll, though it is not part of the chlorophyll molecule itself?
A.Potassium
B.Iron
C.Nitrogen
D.Magnesium
- 8.
Why is 'Fertilizer' application often regulated by specific dosage recommendations unlike 'Manure'?
A.Because manure is very expensive
B.Because fertilizers are chemically concentrated and excessive amounts can lead to 'nutrient burn' and environmental toxicity
C.Because manure only works if applied in tons, while fertilizers work in grams
D.Because fertilizers turn into manure if used in small quantities
- 9.
Which of the following practices is most likely to cause 'soil infertility' over a long duration?
A.Crop rotation with leguminous plants
B.Regular application of vermicompost
C.Continuous use of chemical fertilizers without organic replenishment
D.Using green manure before every main crop
- 10.
How does manure help in 'Sandy soils' specifically?
A.It helps in rapid drainage of water
B.It increases the water-holding capacity due to its high organic matter content
C.It makes the sand particles larger
D.It makes the sand particles disappear
Download the worksheet for Improvement in Food Resources - Nutrient Management (Manure and Fertilizer) to practice offline. It includes additional chapter-level practice questions.
Animal Husbandry (Cattle, Poultry, Fish, Bee-keeping)
SubtopicAnimal Husbandry (Cattle, Poultry, Fish, Bee-keeping) under Improvement in Food Resources for Grade 9 CBSE.
Preview questions (no answers)
- 1.
The place where bees are kept for commercial honey production is called an:
A.Aquarium
B.Apiary
C.Aviary
D.Stable
- 2.
Which small Indian bee is known as the 'little bee'?
A.Apis dorsata
B.Apis florea
C.Apis mellifera
D.Apis cerana indica
- 3.
Bee-keeping is often done by farmers as a side business because:
A.It requires a lot of land
B.It is very expensive
C.It requires low investment and provides additional income
D.Bees help in weeding the farm
- 4.
The 'rock bee' is scientifically known as:
A.Apis florea
B.Apis dorsata
C.Apis mellifera
D.Apis cerana
- 5.
In poultry, the prevention of 'Coccidiosis' involves which of the following?
A.Giving the birds plenty of water
B.Providing appropriate medications and maintaining dry litter
C.Exposing the birds to high levels of sunlight
D.Adding more roughage to their diet
- 6.
The scientific name of the Rock Bee, which is a high honey-yielding indigenous variety but difficult to domesticate, is:
A.B.C.D. - 7.
What is the primary reason for 'finned fish' to be cultured in inland water bodies like canals and ponds?
A.To produce pearls
B.To provide a cheap source of animal protein
C.To reduce the water level in canals
D.To clean the water of all microscopic life
- 8.
Which of the following fish is an example of a freshwater 'Surface Feeder'?
A.Catla
B.Rohu
C.Mrigal
D.Common Carp
- 9.
In a poultry farm, why is 'lighting' carefully controlled for the 'layers'?
A.Photoperiodism affects the hormonal balance that triggers egg-laying.
B.Layers need light to see the food, as they cannot eat in the dark.
C.High-intensity light prevents the spread of fungal diseases like aspergillosis.
D.Lighting is used only to keep the birds warm during the winter months.
- 10.
How do 'External Parasites' like lice and ticks primarily affect the productivity of cattle?
A.They cause skin diseases and irritation, leading to stress and reduced milk production.
B.They enter the bloodstream and damage the internal organs like the heart and lungs.
C.They consume the food directly from the animal's stomach, causing malnutrition.
D.They lay eggs inside the animal's muscles, making the meat unfit for consumption.
Download the worksheet for Improvement in Food Resources - Animal Husbandry (Cattle, Poultry, Fish, Bee-keeping) to practice offline. It includes additional chapter-level practice questions.