📘 Welcome
Hi User, you have selected Read Mode.
This is Time Free Mode for your convenience to understand every question as per your Ease and Time.
Here You get Answer and Details button. After mastering this mode, you can go for a test with Test Mode on the main page designed especially with Exam Features.
This is Time Free Mode for your convenience to understand every question as per your Ease and Time.
Here You get Answer and Details button. After mastering this mode, you can go for a test with Test Mode on the main page designed especially with Exam Features.
Q1. The practice of growing different crops in a planned sequence on the same land is called:
Crop rotation is the practice of growing different crops in a planned sequence on the same land. It helps maintain soil fertility, reduces pest and disease buildup, and improves overall productivity. Mixed cropping is growing different crops simultaneously, intercropping is growing two or more crops together in a specific pattern, and multiple cropping is growing several crops in the same year.
Q2. Growing a leguminous crop like gram or peas after a cereal crop like wheat in the same field is an example of:
Growing a leguminous crop like gram or peas after a cereal crop like wheat is a classic example of crop rotation. Legumes fix nitrogen in the soil, replenishing nutrients that cereals deplete. This improves soil fertility and reduces the need for fertilizers. Mixed cropping grows crops simultaneously, field fallow leaves the land uncultivated, and intercropping involves growing crops together.
Q3. The practice of growing two or more different crops simultaneously on the same piece of land is called:
Mixed cropping is the practice of growing two or more different crops simultaneously on the same piece of land. This reduces the risk of crop failure and ensures better utilization of resources. Crop rotation is sequential, field fallow is leaving land uncultivated, and plant breeding is improving crop varieties.
Q4. Growing wheat and gram together in the same field is an example of:
Growing wheat and gram together in the same field is an example of mixed cropping. Both crops are grown simultaneously, and they complement each other—gram fixes nitrogen, which benefits wheat. Crop rotation would mean growing them in different seasons, monocropping is growing a single crop, and transplanting is moving seedlings.
Q5. The practice of leaving the field uncultivated for one or more seasons to restore its fertility is called:
Field fallow is the practice of leaving the field uncultivated for one or more seasons to allow the soil to restore its fertility naturally. This helps replenish nutrients and organic matter. Crop rotation, mixed cropping, and intercropping are different practices that involve cultivation.
Q6. Leaving agricultural land without sowing any crop for a period is beneficial because it:
Leaving agricultural land fallow allows the soil to recover its fertility. It helps replenish nutrients, organic matter, and soil structure. It does not increase pests or weeds and does not permanently reduce irrigation needs. Fallowing is a traditional soil conservation method.
Q7. The method of controlling pests by using natural predators is known as:
Biological control is the method of controlling pests by using natural predators, parasites, or pathogens. It is an eco-friendly approach. Chemical control uses pesticides, cultural control uses farming practices, and physical control uses barriers or traps. Releasing ladybirds is an example of biological control.
Q8. Releasing ladybirds in a field helps in controlling which type of pest?
Ladybirds (ladybugs) are natural predators of aphids, which are common pests of crops. They feed on aphids and help control their population. Rodents, weeds, and fungi are not controlled by ladybirds. This is an example of biological pest control.
Q9. A chemical substance used to kill insects that damage crops is called an:
An insecticide is a chemical substance used to kill insects that damage crops. Herbicides kill weeds, fungicides kill fungi, and weedicide is another term for herbicide. Insecticides are important for protecting crops from insect pests.
Q10. The use of resistant crop varieties is an effective method of:
Resistant crop varieties are developed through plant breeding to protect crops from pests and diseases. They reduce the need for chemical pesticides. They do not increase irrigation needs, reduce harvesting needs, or delay maturity. Resistant varieties are a sustainable solution.
Q11. The process of cleaning the field by removing crop residues after harvest helps in:
Removing crop residues after harvest helps protect from pests and diseases by eliminating hiding places and breeding sites for pests. It does not increase pest infestation or reduce soil fertility. It also does not delay sowing; it actually prepares the field for the next crop.
Q12. Spraying chemical pesticides is an example of which method of pest control?
Spraying chemical pesticides is an example of chemical control. It involves the use of synthetic chemicals to kill pests. Biological control uses natural predators, cultural control uses farming practices, and physical control uses barriers or traps. Chemical control is widely used but can have environmental impacts.
Q13. Which of the following is a physical method of protecting crops from pests?
Using nets and traps is a physical method of protecting crops from pests. It creates a physical barrier or captures pests. Insecticides are chemical, releasing predators is biological, and resistant varieties are developed through breeding. Physical methods are non-toxic and environmentally friendly.
Q14. The main purpose of weeding is to:
The main purpose of weeding is to remove unwanted plants (weeds) that compete with crops for nutrients, water, and light. This improves crop growth and yield. Weeding does not increase soil moisture, add nutrients, or improve taste. It is essential for healthy crop production.
Q15. Which of the following is a common weed found in agricultural fields?
Cyperus (nut grass) is a common weed found in agricultural fields. It competes with crops and is difficult to control. Wheat, rice, and gram are cultivated crops, not weeds. Weeds like Cyperus reduce crop productivity.
Q16. A chemical used to kill unwanted plants is called a:
A herbicide is a chemical used to kill unwanted plants (weeds). Insecticides kill insects, fungicides kill fungi, and rodenticides kill rodents. Herbicides are important for weed control in agriculture.
Q17. Proper storage of grains is important to:
Proper storage of grains is important to protect them from pests, moisture, and spoilage. It ensures food security and prevents losses. Storage does not increase weight, speed up germination, or change color. Good storage practices are essential after harvest.
Q18. Before storing grains, they are dried in the sun to:
Grains are dried in the sun to reduce moisture content and prevent fungal growth. High moisture leads to spoilage. Drying does not increase size, make grains heavier, or remove the husk. It is a simple and effective preservation method.
Q19. Which of the following is a traditional method of storing grains at home?
A mud bin lined with straw is a traditional method of storing grains at home. It protects grains from moisture and pests. Silos are modern, refrigerators are not used for grains, and plastic bags without ventilation can cause spoilage. Traditional methods are still used in many rural areas.
Q20. A large, airtight structure used for storing bulk grains in modern agriculture is called a:
A silo is a large, airtight structure used for storing bulk grains in modern agriculture. It protects grains from pests, moisture, and spoilage. A shed is a simple shelter, a granary is a storehouse, and a bin is a smaller container. Silos are used for large-scale storage.
Q21. The practice of rearing animals for milk and milk products is called:
Dairying is the practice of rearing animals for milk and milk products. Apiculture is beekeeping, pisciculture is fish farming, and horticulture is cultivation of fruits and vegetables. Dairying involves management of cows, buffaloes, and goats for milk production.
Q22. Which of the following animals is commonly reared in dairying?
Buffalo is commonly reared in dairying for milk production. Hens are reared for eggs and meat, sheep for wool and meat, and fish for aquaculture. Buffalo milk is a major source of dairy products in India.
Q23. The process of providing proper shelter, feed, and healthcare to dairy animals is called:
Animal husbandry is the process of providing proper shelter, feed, and healthcare to dairy animals. It includes breeding, feeding, and disease management. Apiculture is beekeeping, pisciculture is fish farming, and horticulture is cultivation of fruits and vegetables.
Q24. The practice of keeping and caring for honeybees for honey production is called:
Apiculture is the practice of keeping and caring for honeybees for honey production. Sericulture is silk production, pisciculture is fish farming, and horticulture is cultivation of fruits and vegetables. Apiculture also provides beeswax and helps in pollination.
Q25. Which of the following is a species of honeybee commonly used for apiculture in India?
Apis dorsata (rock bee), Apis mellifera (European bee), and Apis florea (dwarf bee) are all species of honeybees used for apiculture in India. Apis mellifera is the most commonly used for commercial honey production. All are important for beekeeping.
Q26. Apart from honey, what other product is obtained from beekeeping?
Beeswax is another important product obtained from beekeeping, used in candles, cosmetics, and polishes. Silk is from silkworms, wool from sheep, and leather from animal hides. Beeswax is a valuable byproduct of apiculture.
Q27. The practice of rearing fish in ponds, tanks, and reservoirs is called:
Pisciculture is the practice of rearing fish in ponds, tanks, and reservoirs. Apiculture is beekeeping, sericulture is silk production, and horticulture is cultivation of fruits and vegetables. Fish farming is an important source of protein.
Q28. Which of the following is an example of a freshwater fish commonly reared in pisciculture?
Rohu is a freshwater fish commonly reared in pisciculture in India. Tuna and salmon are marine fish, and sardine is also a marine fish. Rohu is a popular fish in Indian aquaculture and is widely consumed.
Q29. The practice of raising fish along with paddy cultivation in the same field is called:
Integrated fish farming involves raising fish along with paddy cultivation in the same field. This is a sustainable practice that maximizes land use and provides additional income. Mixed farming involves crops and animals, crop rotation is sequential, and mixed cropping is growing crops together.
Q30. In crop rotation, planting a leguminous crop helps in:
Leguminous crops like gram and peas add nitrogen to the soil through nitrogen fixation. Rhizobium bacteria in their root nodules convert atmospheric nitrogen into usable forms. This improves soil fertility. They do not deplete nitrogen or increase weeds.
Q31. One of the main advantages of mixed cropping is that it:
Mixed cropping reduces the risk of complete crop failure because if one crop fails due to pests or weather, the other crops may survive. It also improves resource use and provides diversified income. It does not require more fertilizers or deplete soil nutrients faster.
Q32. Which of the following is a disadvantage of leaving a field fallow?
Leaving a field fallow means the land is unproductive for one or more seasons, which is a disadvantage. However, it helps restore fertility. It does not increase pests or reduce fertility (it restores it), and it does not require more irrigation. The main drawback is lost production time.
Q33. Neem leaves and extracts are used in crop protection because they:
Neem leaves and extracts act as natural pesticides due to their insect-repelling and antifungal properties. They are used in organic farming. They do not increase growth, add color, or reduce water needs. Neem-based products are eco-friendly pest control options.
Q34. Which of the following is a cultural method of weed control?
Proper seed bed preparation and timely sowing are cultural methods of weed control. They create conditions that favour crop growth over weeds. Spraying herbicides is chemical control, nets are physical control, and releasing predators is biological control.
Q35. The main purpose of storing grains in gunny bags is to:
Storing grains in gunny bags allows ventilation, which prevents moisture buildup and mold growth. It helps keep grains dry and safe. Gunny bags do not keep grains moist, increase weight, or speed up germination. Proper storage is essential for grain quality.
Q36. Dairying contributes to the economy of Jammu and Kashmir through the rearing of:
Dairying in Jammu and Kashmir involves the rearing of sheep and goats for milk and other products. Fish farming (pisciculture), beekeeping (apiculture), and sericulture (silkworms) are other activities. Sheep and goats are important for milk production in the region.
Q37. Which of the following is an example of a pest that damages stored grains?
Weevils are common pests that damage stored grains by feeding on them and laying eggs. Earthworms are beneficial for soil, ladybirds are beneficial predators, and honeybees are useful for honey. Weevils cause significant losses in stored grain.
Q38. The practice of keeping the field fallow helps in:
Keeping the field fallow helps restore soil fertility naturally by allowing organic matter to build up and nutrients to regenerate. It does not increase pests, reduce harvesting needs, or speed up crop growth. Fallowing is a traditional method of soil conservation.
Q39. In mixed cropping, the crops are selected such that they have:
In mixed cropping, crops are selected to have different nutrient requirements and growth habits so they complement each other. This reduces competition and makes better use of resources. Crops with similar needs would compete, reducing the benefits of mixed cropping.
Q40. Which of the following is a common pest of crops that can be controlled by biological methods?
Grasshoppers and caterpillars are common crop pests that can be controlled by biological methods using natural predators like birds or parasitic wasps. Weeds are controlled by herbicides or cultural methods. Biological control is effective against many insect pests.
Q41. The storage of grains in modern times often involves the use of fumigants to:
Fumigants are chemicals used in modern grain storage to kill pests inside the storage structure. They are effective against insects and rodents. They do not increase moisture, improve color, or increase weight. Fumigation is an important pest control method.
Q42. Which of the following is a benefit of apiculture?
Apiculture provides honey and beeswax and also helps in pollination, which increases crop yields. It does not increase soil fertility, produce milk, or control weeds. Beekeeping is beneficial for both agriculture and the environment.
Q43. In pisciculture, proper management of ponds includes:
Proper management of fish ponds includes regular cleaning, feeding, and maintaining water quality to ensure healthy fish growth. Leaving the pond unused, adding herbicides, or removing all aquatic plants would harm the ecosystem. Good management is essential for successful fish farming.
Q44. The practice of crop rotation helps in protection from pests and weeds because:
Crop rotation disrupts the life cycle of pests and weeds that are specific to a particular crop. When the host crop is not grown, pests and weeds cannot survive. This reduces pest and weed populations naturally. It does not increase pests or make soil acidic.
Q45. Which of the following is a traditional method of protecting stored grains from insects at home?
Mixing neem leaves or dry chillies with grains is a traditional method of protecting stored grains from insects. These natural substances repel pests. Chemical fumigants are modern, storing in wet containers causes spoilage, and continuous sunlight is not a storage method. Traditional methods are safe and effective.
Q46. Dairying includes the management of:
Dairying involves the comprehensive management of milk-producing animals, including breeding, feeding, shelter, and healthcare. It is not limited to only feeding, milking, or housing. Proper management ensures high milk yield and animal health.
Q47. Which of the following is a dual-purpose breed of cattle reared in India for both milk and draught work?
Sahiwal is a dual-purpose breed of cattle reared in India for both milk production and draught work (ploughing, cart pulling). Jersey and Holstein Friesian are exotic dairy breeds, and Ayrshire is also a dairy breed. Sahiwal is well-suited to Indian conditions.
Q48. In apiculture, the wooden box where bees are kept is called a:
In apiculture, the wooden box where bees are kept is called a hive. It provides a structured environment for bees to build comb and produce honey. A nest is for birds, a cage is for animals, and a pond is for fish. The hive is the home for honeybees.
Q49. The main advantage of field fallow in traditional farming is that it:
Field fallow allows the soil to regain nutrients naturally without the use of chemical fertilizers. It improves soil structure and organic matter content. It does not increase the need for fertilizers, reduce irrigation, or increase pests. Fallowing is a sustainable practice.
Q50. Integrated pest management combines:
Integrated Pest Management (IPM) combines cultural, biological, and chemical methods in a balanced and sustainable way. It minimizes environmental impact while effectively controlling pests. Using only one method is not IPM. IPM is a holistic approach to pest control.