Selina Concise Class 8 Biology Solution Chapter No. 9- ‘Food Production’ For ICSE Board Students.
Selina Concise Biology Solutions for Class 8th Chapter 9 Food Production with easy language, expert answers and doubt clearing sections. The book is especially designed keeping in mind the syllabus of ICSE board and the difficulty level faced by the students of ICSE boards class 8.
Selina Class 8 Biology Chapter 9 Solution:
1.) Put a tick mark against the correct alternative in the following statements:
(a) Which one of the following is an indigenous breed of dairy cows.
(i) Jersy (ii) Frieswal (iii) Sahiwal (iv) Dangi
Answer: Answer is(iii) Sahiwal, others are exotic and cross breeds.
(b) Which one of the following is the common breed of buffalo found in Gujarat ?
(i) Surti (ii)Murrah (iii) Gir (iv) Mehsana
Answer: Answer is(iv) Mehsana, is most common breed than other.
(c) Identify the indigenous breed of poultry of India.
(i) White leghorn (ii) HH-260 (iii) Aseel (iv) B-77.
Answer: Answer is(iii) Aseel, remaining are not indigenous breed of poultry of India.
(d) Which one of the following is a rabi crop?
(i) Mustard (ii) Pea (iii) Rice (iv) Wheat
Answer: Answer is(iv) Wheat, others are not rabi crop.
(e) Identify the kharif crop.
(i) Barley (ii) Mustard (iii) Rice (iv) Wheat
Answer: Answer is(iii) Rice, because it is commercially important.
Short answer questions :
1.) Fill in the blanks.
(a) Cattle feed madefrom cereals and wheat is calledconcentrates.
(b) Rearing of birds for egg and meat is called :Poultry farming.
(c) Animal food is rich in proteins.
2.) Name the following.
(a) The popular indigenous breed of poultry of India.
Answer: Aseel.
(b) Rearing of honey bees.
Answer: Apiculture
(c) Architect of white revolutions in India.
Answer: VergheseKurien
(d) A Kashmiri wool which gives expensive wool is
Answer: Kashmiri Pashmina
(e) Scientist responsible for green revolution in India is
Answer: It is Swaminnathan.
3.) Match the columns.
Column A Column B
(a) Rabi crop (i) Transplantation
(b) Rice crop (ii) Winter crop
(c) Orchards (iii) Kharif crop
Answer:
Column AAnswer
(a) Rabi crop (ii) Winter crop
(b) Rice crop (i) Transplantation
(c) Orchards (iii) Kharif crop
4.) Answer the following questions :
(a) Name any four animals which provides us food.
Answer: These are cow, fish, goat and chicken.
(b) Name any two dual purpose breeds of cattle.
Answer: These are Sahiwal and Gir
(c) Give two examples of milch animals.
Answer: Camel and Buffalo
(d) Name any two high yielding indigenous breeds of cows.
Answer: Red sindhi and Sahiwal cattle
(e) Name four varieties of edible fishes in India.
Answer:Catla, Labei, Pomphrets and Sadinella.
(f) Name two breeds of buffalos.
Answer:Jaffrabadi and Murrah
5.) Briefly explain the following terms.
(a) Animal husbandry
Answer: Animal husbandry is one of the branch of biology which contains various processes such as breeding, feeding, caring and giving shelter to domesticated animals. There are various domesticated animals such as cow, buffalo, goat, sheep and camel. These animals give benefits to the humans by giving milk, eggs, wool and financial help to humans.
(b) Sericulture:
Answer: The sericulture can be defined as the process by which artificial rearing of silkworm and the production of silkworm takes place. There are various varieties of the silk which are produced in India such as tassar, eri, mulberry and mugga. The process of obtaining commercial silk called as reeling.
(c) Aquaculture
Answer: An aquaculture can be termed as the production of organic animals which are present in various plant bodies such as fishes, molluscs, prawns and lobster. These are the aquatic animals used for commercial purpose.
(d) Hatcheries:
Answer: Hatcheries is the term used for fresh water fishes. In which fish culturing of the fresh water fishes takes place. The fish eggs are used in nursery called as hatcheries. In this process fish eggs are harvested.
(e) Pisciculture: This term Can be divide as pisci means fishes and culture means rearing. The process is mainly concerns about the production of fishes and the management of produced fishes.
6.) What is organic farming ?
Answer: Organic farming can be defined as the growing and raising the crop without the use of any pesticide and any kind of synthetic fertilizers.
Long answer question
1.) Differentiate between an egger and a broiler
Answer:
an egger | a broiler |
An egg laying poultry called as egger. | The meat producing poultry called as broiler. |
For example : Chicken used for eggs | For example :Chicken used for meat. |
2.) Name any two exotic breeds of fowl in India and mention their usefulness.
Answer: two exotic breeds of fowl in India are rhode island red and leghorn. These both are used for economical purposes and having a good egg layer. It also produces the large amount of meat.
3.) What are milch animals? Give two examples each of exotic and cross breeds of cows.
Answer: The milk yielding animals are called as milch animals. The milk can be obtained from cow, buffalo, goat. The milk produced from these animals have nutritive value. The examples of exotic breeds of cows are Jersy and Brown swiss and the examples of cross breeds of cowsare Frieswal and karan fries.
4.) What is the meaning of term aquaculture? Name any three animals which can be cultured by this method.
Answer: The aquaculture is the term used for the aquatic animals, the production and management of commercially important aquatic animals. For example : fish, prawns and lobsters.
5.) Differentiate between food crops and cash crops. Give two examples of each.
Answer:
food crops | cash crops |
When the plants grow for the purpose of food called as food crops. | When the plants grow for the commercial purpose called as cash crops. |
For example : cereals and pulses | For example : Tea and coffee. |
6.) What are kharif crops ? Name the most important cereal plant of such crops.
Answer: Kharif crops are also called as autumn crops they are cultivated in the rainy season in between June to October They require the temperature 16 -20⁰ C. The examples of such plants are rice, wheat, barley and maize.
7.) Name the two main crop seasons of India. Give three examples of the crops grown during each season.
Answer: the two main crop seasons of India are Rabi and Kharif. The examples of Rabi plants are wheat, mustard and barley whereas kharif crops are maize, groundnut and pulses.
8.) List the uses of bacteria in food industry.
Answer: There are various uses of bacteria.
1) The bacteria are useful in making curd and cheese.
2) With the help of bacterial fermentation wine can be prepared.
3)The bacteria are also used in genetic engineering.
4) Now a days bacteria used in the process of bioremediation.
9.) Name any one variety of edible mushrooms.
Answer: Paddy straw mushroom is the variety of edible mushrooms.
10.) Mention the benefits of green revolution in our country.
Answer: the benefits of green revolution in our country are as follows :
1) Due to green revolution, larger quantity of food grains can be produced.
2) Rural employment has been tremendously increased.
3) It leads to success of industrial growth.
11.) List out benefits of white revolution in our country.
Answer: 1) Due to which milk production has been increased.
2) The products of milk get much demand in market.
3) Due to white revolution, India has commercial benefits.
4) The people get employment due to white revolution.