CBSE Questions for Class 9 Biology Improvement In Food Resources Quiz 1 - MCQExams.com

• The branch of science dealing with the study of various breeds of domesticated animals and their management for obtaining better products from them is known as animal husbandry. Animal husbandry involves poultry, cattle farming, fish farming, bee farming, etc.
• Dairy science and technology involve the study of the chemistry of milk constituents, the control of microorganisms (desirable and undesirable) associated with milk and dairy products, all branches of engineering related to milk processing, and the economics of milk processing, distribution, and retailing.
• Veterinary science is the medical specialty concerned with the prevention, control, diagnosis, and treatment of diseases affecting the health of domestic and wild animals and with the prevention of transmission of animal diseases to people.
  
• So, the correct answer is option C.

• Agriculture and animal husbandry are the primary sources of food from plants and animals, respectively. 
• Vermiculture is the use of earthworms to convert organic waste into manure.

• Animal husbandry is the management of farm animals where farm rearing, feeding, caring and breeding of farm animals is done. It also includes caring and grooming livestock (domestic animals) that are raised to produce food and fiber like a cow for milk, chicken for meat and eggs, and pig for meat.
• Animal husbandry also takes care of the proper breeding of domesticated animals with desirable characteristics that allow the creation and maintenance of a good generation of animals. 
• The breeding, rearing, and transplantation of fish by artificial means is called pisciculture, in other words, fish farming.
• Therefore, the correct answer is option D.

• The raising and care of bees for commercial or agricultural purposes is known as apiculture. It is the maintenance of honeybee colonies, commonly in hives, by humans.
• A beekeeper keeps bees in order to collect honey and other products of the hive (including beeswax, propolis, pollen, and royal jelly) to pollinate crops. A location where bees are kept is called an apiary or bee yard. 
• Sericulture is the process of cultivating silkworms and extracting silk from them.
  
• Tissue culture is the growth of tissues or cells in an artificial medium separate from the parent organism. 
  
• The breeding, rearing, and transplantation of fish by artificial means is called pisciculture, in other words, fish farming.

Hence, option B is correct.

• Cattle farming is defined as the management of cattle by humans for obtaining good quality and quantity of milk and as help in agriculture work,
• The milch animals like buffaloes, cows, she-goats give milk. The other cattle which do not give milk like ox are called draught animals They help in farming practices like tilling, and irrigation. They can also be used for driving carts.
• Cattle farming includes only rearing of cattle and not of hen and duck, hence no egg production happens. Therefore points (i), (ii), and (iii)  are correct, but point (iv) is incorrect. 
• So, the correct option is A.

• A check dam also called a gully plug is a small, often temporary, dam constructed across a swale, drainage ditch, or waterway to counteract erosion by reducing water flow velocity. 
  
• They hold water and prevent soil erosion, they help in recharging groundwater. 
  
• That is why it is important to make small check dams across the flooded gullies.

• Mixed farming is the process of growing crops and livestock animals in same area. In mixed farming manure is available from livestock animals maintains soil fertility. 
• Crop rotation is the method of cultivation in which different crops are cultivated on the same land in successive seasons. It helps to maintain soil productivity. 
• Mono-cropping is the pattern of cropping of a similar type of plant in the same land throughout the year. It reduces biodiversity and increases the difficulty in nutrient cycling. 
• Intercropping is the practice of growing two or more crops on the same piece of land in alternate rows. It increases land productivity and acts as insurance for the farmers during crop failure.

• The image given is of a gundhi bug that is a pest to the crops of paddy.
• The gundhi bug sucks the sap from individual grains which leads to brownish discoloured patches on the husk.

• Man is an omnivorous species and depends on other plants and animals for food, many animals like fowl, fish, pig, etc are used for foods like egg, chicken, beef, pork, etc.

• Poultry farming is the process of raising birds such as chickens, quails, ducks, and turkey.
• Poultry farming, raising of birds domestically or commercially, primarily for meat and eggs but also for feathers.
  
• In India, poultry farming is done as a side business along with agriculture or as a main profession. 

In India monsoon usually lasts from July to September. It is very irregular and unpredictable. India usually have no rains when needed and hence India requires highly sophisticated irrigation facilities and construction of reservoirs by which rain water can be stored and used all along the year. This is the major problem with Indian water potential though it has abundant rainfall. 

Option A is correct.