DAV Class 8 SST Solution Chapter 5 Agriculture
DAV School Books Class 8 SST Solution Chapter 5 Agriculture all Question Answer. DAV Class 8 5th Chapter Agriculture full Chapter explanation by expert teacher.
DAV School Books Class 8 SST Solution Chapter 5 Agriculture:
(A) Tick the correct option –
(1) Millets are also known as-
(a) Fine grains
(b) Multigrains
(c) Artificial grains
(d) Coarse grains
Ans: (d) Coarse grains
(2) Tea is a-
(a) Cereal Crop
(b) Fibre crop
(c) Fruit crop
(d) Beverage crop
Ans: (d) Beverage crop
(3) Who amongst the following are the nomadic herders of the Himalayan area?
(a) Bhotiyas
(b) Munda
(c) Siddi
(d) Jarawas
Ans: (a) Bhotiyas
(4) Slash and burn practice of agriculture is also known as-
(a) Plantation agriculture
(b) Intensive subsistence agriculture
(c) Shifting agriculture
(d) Extensive agriculture
Ans: (c) Shifting agriculture
(5) The type of commercial agriculture, which is practised on a large estate for growing of a single crop continuously for several years, is known as-
(a) Livestock ranching
(b) Extensive agriculture
(c) Plantation agriculture
(d) Organic farming
Ans: (c) Plantation agriculture
(B) Fill in the blanks.
(1) _______ is grown in the mid-latitudinal and dry sub-tropical regions.
Ans: Wheat.
(2) Cotton, ________ and natural silk are natural fibres.
Ans: jute.
(3) Coffee plant needs _________ and ________ climate.
Ans: hot, humid.
(4) Deltas, river valleys, coastal plains with rainfall above 100 cm are ideal for the cultivation of ________.
Ans: rice.
(5) When animals are reared along with the cultivation of land, it is known as ________ farming.
Ans: mixed.
(C) Write a technical term or an appropriate word for each of the following statements.
(1) The science and art of raising crops, rearing of livestock, forestry and fishing.
Ans: Agriculture.
(2) A type of agricultural system in which a farmer and his family grow crop for self-sustenance.
Ans: Subsistence agriculture.
(3) Agriculture practised on a very large scale for crop specialisation.
Ans: Commercial agriculture.
(4) The commercial grazing of farm animals in temperate grasslands to obtain meat, wool, hides, skins and some dairy products.
Ans: Livestock ranching.
(5) People who migrate along with their animals from one place to another in search of fodder for their animals.
Ans: Nomads.
(D) Answer the following questions in brief –
(1) When and how did agriculture start along the river valleys? What is the wider definition of agriculture now?
Ans: Early human beings used to collect food by gathering and hunting. It was becoming a difficult work for them day by day. So they realised the importance of river for agricultural production and started to setup civilization alongside the river.
Cultivating land in a wider range, such as fishing, raising crops, rearing livestock, forestry are broadly called agriculture.
(2) Highlight the importance of agriculture for people around the world.
Ans: Importance of agriculture –
(i) it’s a major source of livelihood for most of the population of the world.
(ii) Along with supplying food to the people agricultural also creates market for tractors, harvesters, fertilizers etc.
(iii) It encourages international trades and strengthen global relationship.
(3) Describe any three new techniques used in agriculture to increase the production of crops.
Ans: Three techniques to increase the production of crops are-
(i) HYV Seeds- discovery of high yielding variety of seeds has increased the production of crops.
(ii) Size of land can increase the production of crops. Large size of land can I’ve the chance for more cultivation.
(iii) Availability of skilled labour can Increase the production of crops.
(4) What type of soil, temperature and rainfall is required for the cultivation of wheat and rice?
Ans: Rice cultivation-
Soil-Alluvial, loamy, chlaye soil Temperature- 24°c or above Rainfall-above 100cm.
Wheat Cultivation- Soil-Loamy soil.
Temperature- at the time of sowing 10-15°c and at the time of harvesting 20-25°c temperature needed.
Rainfall-without frost it needs 75-100 cm rainfall.
(5) What is meant by nomadic herding? Which are the most important regions for nomadic herding?
Ans: Migration of people from one place to another place in search of fodder for their animals is called nomadic herding.
Central and Western Asia, East and South West Africa and northern Eurasia are the place for nomadic harvesting.
(E) Answer the following questions –
(1) What are the major differences between the farm agriculture of USA and India?
Ans: Difference between Farm agricultural in USA and India-
(i) In USA we can find large size of farm and in India we can find comparatively small land holdings.
(ii) All labors are skilled in USA comparing to India.
(iii) In USA we find extensive use of modern technology than India.
(iv) In USA we find high capital investment but in India the investment rate is low.
(V) Storage facilities are larger than Indian storage facilities.
(2) Describe any five advantages of using biotechnology for agricultural development.
Ans: Advantages of using biotechnology for agricultural development-
(i) High yielding crops can be produced.
(ii) Crop produced for the use of biotechnology are more colorful, different flavoured and have more nutritious value
(iii) Crops used by the use of biotechnology are genetically modified and help to protect our environment.
(iv) It has helped agricultural to uplift itself value technically.
(V) After using this use of pesticides has been deducted.
(3) Explain any three physical factors influencing the agricultural development in an area.
Ans: The physical factors are-
(i) The river basins, deltas and plain areas are more suitable for agricultural development. Here we can get cheap labor and reach market for the high density of population.
(ii) Different crops need different kind of climatic factors. A particular kind of temperature and rainfall is needed for a particular kind of crop.
(iii) Variation of crops need different kind of soil. Fertility of soil depends upon rich minerals and organic matters.
(4) How is subsistence agriculture different from the commercial agriculture? In your opinion, which one is more useful for India?
Ans: Subsistence agriculture is a small scale type of agriculture and use for personal or community usage. This kind of agriculture can be seen in under developed or in developing countries. Nomadic farming, shifting agricultural and intense subsistence agriculture are the three types of it Commercial agricultural is a large scale agricultural and use for market profit. Market value of the crops are very high. Plantation farming, extensive agricultural, dairy farming and livestock agricultural are the four types of this kind of agriculture.
(5) How do the size of land holdings, labour and capital influence the agricultural development in an area? Explain.
Ans: Size of land holdings, labour and capital are the economic factors of agriculture.
Size of land holdings –big land can cultivate more crops and useful for the large scale production. Agricultural pattern and unit of yielding crops are dependent on the size of a farm
- Capital- For the usage of modern technology a huge capital is needed. Without capital nothing can be possible in a smooth manners.
- Labour – though the existence of high technology machines man power is the ultimate power for agricultural development. In the period of sowing and harvesting agricultural needs extensive supply of labours. In India people of Punjab are worked as migrated labour.
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