Bhagya

This PSEB 8th Class Social Science Notes Chapter 10 The Establishment of East India Company will help you in revision during exams.

PSEB 8th Class Social Science Notes Chapter 10 The Establishment of East India Company

→ Discovery of a New Sea Route: A Portuguese sailor Vasco-de-Gama discovered the new sea route to India in 1498 A.D.

→ European Communities in India: The Portuguese, the English, the French, and the Dutch came to India for trade.

→ Factories: Trading centers of European Companies in India were called ‘Factories’.

→ The British East India Company: The British established the East India Company in 1600 A.D. It opened trade centres in India and checked the expansion of other European trading companies.

→ The French East India Company: Although the French East India Company was established in 1664 A.D., much later than the British company, yet it made great progress in India.

→ Carnatic Wars: The Carnatic Wars were fought between the British and the French. The British won these three wars.

→ Dupleix: Dupleix was the most capable governor of the French possessions in India.

→ Robert Clive: Robert Clive was an able English military commander. He was the founder of the British Empire in India.

→ The victory of Bengal: The British won the battle of Plassey in 1757 A.D. and the battle of Buxar in 1764 A.D. and thus became the real masters of Bengal.

→ Diwani Rights: The Battle of Buxar ended with the Treaty of Allahabad in 1765 A.D. As a result of this treaty, the British got the ‘Diwani Rights’ of Bengal, Bihar, and Orissa. Now the British were in a position to collect land revenue from these territories.

→ Means of Expansion of Empire: The British Empire was expanded through a number of means such as subsidiary alliance, Doctrine of Lapse, war, Discontinuing pension, etc.

→ Maratha Power: The British defeated powerful Maratha rulers one by one and forced them to accept a subsidiary alliance.

→ The victory of Mysore: The British fought four wars with Hyder Ali and Tipu Sultan to conquer Mysore. The British emerged victoriously.

→ Subsidiary Alliances: Lord Wellesley introduced this system for the expansion of the British Empire. Indian rulers who entered into Subsidiary Alliances with the British came completely under British control.

→ The doctrine of Lapse: This policy was started by Lord Dalhousie. If the ruler of a dependent state had no male child, he could not adopt a son. It meant, if a native ruler died without leaving a son behind, the dependent state would pass automatically into the hands of the British.

This PSEB 8th Class Social Science Notes Chapter 9 When, Where and How will help you in revision during exams.

PSEB 8th Class Social Science Notes Chapter 9 When, Where and How

→ Division of History:

• World history has been divided into the ancient period, the medieval period, and the modern period.
• In the same way, Indian history has also been divided into three periods i.e. ancient period, the medieval period, and the modern period.

→ Modern Period: Modern period in Europe started in the 16th century but in India, it started in the 18th century.

→ Modern Period in India:

• New powers emerged in the modern period.
• European powers came to India and British rule was established in India.
• Consciousness came among Indians with the spread of western education and national movement started in India.
• It led to the freedom of India in 1947 A.D.

→ Sources of History of Modern India: Main sources of the History of Modern India are:

• Books
• Government Documents
• Newspapers, Magazines, and Pamphlets
• Historical monuments
• Paintings and Sculptures
• Letters of political leaders, etc.

This PSEB 8th Class Social Science Notes Chapter 8 Disaster Management will help you in revision during exams.

PSEB 8th Class Social Science Notes Chapter 8 Disaster Management

→ Natural Hazard: Any natural event that does not occur frequently but is fast enough to threaten life is called a ‘natural hazard’.

→ Natural disasters: The location of the natural hazards and the intensity with which it occurs lead to what are known as natural disasters. Tsunami, earthquakes, cyclones, floods, etc.

→ Earthquake: The sudden mild or violent shaking of a part of the earth is called an earthquake.

→ Seismograph: An instrument is used to record and measure the vibrations of the earthquake.

→ Man-Made disasters: Bomb explosions, terrorism pollution, Dam-burst, industrial accidents, and epidemics.

→ Disaster Management in India: Many institutions have started courses in disaster management. These include:

• Central Disaster Management Authority, New Delhi.
• Disaster Management National Centre, New Delhi.
• Earthquake Information Centre, I.I.T. Kanpur.
• Disaster Management Institute, Bhopal.
• Indira Gandhi Open University, New Delhi.
• Central Board of Secondary Education, New Delhi.

This PSEB 8th Class Social Science Notes Chapter 4 Our Agriculture will help you in revision during exams.

PSEB 8th Class Social Science Notes Chapter 4 Our Agriculture

→ Agriculture: It refers to the cultivation of the soil for growing crops and rearing livestock.

→ Crops: The plant species cultivated by human beings for their use.

→ Livestock: Animals and birds which are reared for human use.

→ Crop Specialization: One particular crop suitable for the region is selected by the farmer to be cultivated by him. This is mainly followed for selling the produce in the market.

→ Organic Farming: In this type of farming, organic manure and natural pesticides are used instead of chemicals.

→ Subsistence Agriculture: Farming in which the product is consumed by the farmer’s household.

→ Commercial Agriculture: Farming in which the produce is grown by the farmer for selling in the market.

→ Intensive Agriculture: The farmer produces more by working hard and using the same field over and over again making use of better agricultural means.

→ Extensive Agriculture: The agriculturist tries to get good output by bringing more and more areas under plough.

→ Mixed Farming: Farming in which animals are also used on the farm while growing crops.

→ Multiple Cropping: When two or more crops are grown at the same time on one and the same field.

→ Sericulture: Commercial rearing of silkworms.

→ Horticulture: Growing vegetables, flowers, and fruits for commercial use.

→ Pisciculture: Breeding of fish in specially constructed tanks and ponds.

→ Viticulture: Cultivation of grapes.

→ More than half of the world’s population is directly or indirectly engaged in agriculture.

→ Favourable topography of soil and climate is vital for agricultural activity.

→ Agriculture depends largely on the relief of land, climate conditions, fertility of the soil, and economic factors.

→ Soils not only support the plant but also act as a medium to supply moisture and nutrients.

→ In intensive agriculture, the aim is to get higher yields per unit area.

→ Extensive agriculture is done with machines in sparsely populated areas.

→ In commercial agriculture, most of the crops are produced for the market.

→ The production of fruit and flowers is called horticulture.

→ In a co-operative farm, all the members work and earn proportionately.

→ Crops and livestock are raised together on the same farm in mixed farming.

→ Shifting cultivation is known by different names in different parts of the world, i.e., Juming, Milpa, Ladang, etc.

This PSEB 8th Class Social Science Notes Chapter 3 Minerals and Energy Resources will help you in revision during exams.

PSEB 8th Class Social Science Notes Chapter 3 Minerals and Energy Resources

→ Rock is a natural substance made up of one a more minerals.

→ Minerals: An inorganic substance which is found in the earth’s crust and it has a definite chemical composition.

→ Metallic minerals: Those minerals contain metals.

→ Minerals may be metallic or non-metallic.

→ Minerals can be ferrous and non-ferrous.

→ Mining: It is an economic activity of extracting valuable minerals from the earth.

→ Mine: It is an excavation in the ground for digging out minerals.

→ Recycling: It means using discarded materials once again.

→ Fossil fuels: They are fuels formed due to the decay of plants and animals millions of years ago.

→ Petroleum: It is derived from Latin words Petra meaning rock and oleum meaning oil. So, petroleum means rock oil.

→ Fossils: The decomposed creatures, minute plants, and animals buried and sedimented for millions of years.

→ Ore: Metals in their raw state as they are extracted from the earth.

→ Grid: Electricity from large power plants is transmitted through a network of power lines.

→ Minerals are extracted by mining, drilling, or quarrying.

→ Minerals can be conserved by recycling.

→ Mining is of four types:

• Opencast
• Shaft
• Quarrying
• Drilling

→ All rocks are composed of one or more minerals.

→ Copper was probably the first metal to be discovered and mined by man.

→ Mining is the extraction of minerals from the earth.

→ The distribution of mineral resources is uneven in India.

→ The main sources of power are coal, petroleum, and natural gas.

→ The non-conventional sources of power are sun, wind, tide, falling water, and geothermal sources.

→ Coal is the basis for all industrial development in the world.

→ About 65 percent of the mineral oil resources are found around the Persian Gulf.

→ Metallic minerals contain metal in raw form.

→ The Non-Metallic minerals do not contain metals.

→ Switzerland has no known mineral deposits in it.

→ A green diamond is the rarest diamond.

→ The oldest rocks in the world are in Western Australia.

→ Norway was the first country in the world to develop hydroelectricity.

This PSEB 8th Class Social Science Notes Chapter 2 Natural Resources will help you in revision during exams.

PSEB 8th Class Social Science Notes Chapter 2 Natural Resources

→ Conservation: It means using the available resources carefully.

→ Land: The most important resource.

→ Land may be used for agriculture Construction of Roads, Industries, etc.

→ Soil is the uppermost layer of the earth’s crust.

→ Soil Erosion: The removal of soil, especially topsoil, either naturally or as a result of human activity.

→ Land Use: The use of land for different purposes like agriculture, roads, etc.

→ Terrace Farming: The growing of crops on terraces or steps that have been constructed on hillsides.

→ Topography: A detailed account of the features of a tract of country.

→ Strip Cropping: The growing of narrow strips of Cultivated lands, along the contour lines.

→ Shelterbelts: The planting of rows of trees to check the wind movement, to protect the soil.

→ Deforestation: Cutting down trees.

→ Pollution: Contamination of natural resources.

→ Weathering: The breaking up and decay of exposed rocks by temperature changes, plants, animals, etc.

→ Natural vegetation and wildlife are found in the Biosphere.

→ National Park: A natural area designated to protect the ecological integrity of one or more ecosystems for present and future generations.

→ Biosphere resources: Series of protected areas linked through a global network intended to demonstrate the relationship between conservation and development.

→ The land covers about 29 percent of the total surface area of the earth.

→ Land in India actually under cultivation is about 46 percent of the land.

→ The total land resources in our country are fixed.

→ The importance of soils lies in their fertility and capacity to produce crops.

→ Alluvial soils are mostly found in river valleys and floodplains.

→ About 71 percent of the total surface area of the earth is underwater.

→ Wells, tanks, and canals are different sources of irrigation in our country.

→ Natural vegetation can be broadly classified into forests, grasses, and shrubs.

→ Wildlife refers to plants, animals, birds, and other organisms, which live in their natural habitats.

→ Many countries have taken steps to develop ‘biosphere resources’ to protect wildlife.

→ Ninety percent of the world population occupies only thirty percent of the land area.

→ The remaining seventy percent of the land is either sparsely populated or uninhabited.

→ A dripping tap wastes 1200 liters in a year.

→ Soil formation is a very Slow Process. It takes hundreds of years to make just one centimetre of Soil.

→ The thin layer of grainy substance covering the surface of the earth is called soil.

→ In India, soils are of six types.

→ Water can neither be added nor subtracted from the earth.

→ An average urban Indian uses about 135 litres of water every day.

This PSEB 8th Class Social Science Notes Chapter 1 Resources – Types and Conservation will help you in revision during exams.

PSEB 8th Class Social Science Notes Chapter 1 Resources – Types and Conservation

→ Resources: The base for economic strength and prosperity.

→ Types:

• Natural
• Human-made
• Human

→ Utility: What makes an object or substance a resource.

→ Value: It means worth.

→ Stock of Resources: Amount of resources available for use.

→ Patent: It means the exclusive right over any idea or invention.

→ Resources: They are the means which help in attaining given ends or satisfying human wants.

→ Actual or Potential Resources: On the basis of development natural resources may be actual or potential. We know the usage and quantity of the actual resource like coal deposits. A potential resource is not being used.

→ Natural Resources: The gifts of nature, such as land, rivers, plants, animals, etc. They are used by all living things.

→ Human Resources: The human beings living in a particular area or country. It also refers to the ability of humans to use natural resources usefully:

→ Renewable Resources: Those resources which can be obtained continuously for human needs, such as water, plants, etc. They can regenerate themselves.

→ Non-Renewable Resources: Those resources which have a limited or fixed source of supply. Once used they cannot be regenerated easily again.

→ Technology: It is the knowledge to do or make things. It is a human-made resource.

→ Conservation: It is planned and careful use of natural resources so that these resources can be used for a longer period of time.

→ Abiotic or Biotic Resources: On the basis of origin a resource may be: abiotic or non-living-like soil, rocks or biotic-living-like plants, animals.

→ Renewable and Non-renewable Resources: Natural resources may also be classified as renewable-that exist in unlimited quantity like sunlight or non-renewable that are in limited quantity like petroleum.

→ On the basis of distribution, a resource may be ubiquitous like air-found everywhere or localized-found in certain parts only like minerals.

→ Humans have used their intelligence to create certain resources like; vehicles, buildings, roads, etc.

→ Humans themselves are a resource like farmers, labourers, teachers, doctors, etc. Human resource development is essential for further development.

→ We need to conserve resources for fulfilling present and future needs. This is known as sustainable development.

→ Early man was fully dependent upon the environment.

→ Human needs depend upon the natural environment and level of social, cultural, and technological development.

→ All biotic resources can reproduce and regenerate and thus are renewable.

→ The utility of resources largely depends on their location.

→ Anything that can be used to satisfy a need is called resource.

→ Time and technology are two important factors that can change substances into resources.

This PSEB 9th Class Agriculture Notes Chapter 4 Marketing of Farm Produce will help you in revision during exams.

PSEB 9th Class Agriculture Notes Chapter 4 Marketing of Farm Produce

→ If marketing is done in a proper way one can earn more income.

→ For good marketing, one should take care of the crop from the time of sowing.

→ Sow good quality of a variety of the crop which can be sold easily and can earn good money.

→ Sowing, hoeing, irrigation, use of weedicides and insecticides, etc. should be done with expert opinions.

→ After threshing, weigh the produce.

→ Dispose of the produce after grading.

→ Get a form and receipt from the purchaser so that farmer could know their gains and investment.

→ Produce should be marketed through cooperative societies.

→ Punjab Mandi Board has set up mechanical handling units in Punjab in some of the man dies.

→ Bulk handling units have been established by ‘Food Corporation of India at Mandi Gobindgarh, Moga, and Jagraon for storage and handling of wheat on large scale.

→ Farmers should keep and get the information and knowledge of the markets near them.

→ Rates can be known from Radio, T.V., and Newspapers, etc.

→ In case of any problem in the disposal of the produce farmer can contact higher officials of the market.

This PSEB 9th Class Agriculture Notes Chapter 3 Flower Cultivation will help you in revision during exams.

PSEB 9th Class Agriculture Notes Chapter 3 Flower Cultivation

→ In Indian culture, the importance of flowers is there since time immemorial.

→ Flowers are used for worship, marriage, and social functions.

→ In Punjab, the area under flower cultivation is 2160 hectares.

→ In Punjab, the area under fresh flower cultivation is 1300 hectares.

→ In Punjab, flower crops are mainly classified into two categories.

• Loose Flower
• Cut Flower

→ Loose Flowers are harvested from the base of flowers without their sterns. Examples: Rose, Jasmine, Marigold.

→ Cut flowers are harvested with their long stems. Examples: Gerbera, Rose, Lilium, Gladiolus, etc.

→ Gladiolus is the main cut flower crop in Punjab.

→ Gladiolus is propagated from the corms.

→ Marigold is the main major loose flower crop of Punjab.

→ Marigold is of two types African Marigold and French Marigold.

→ For raising a nursery of one acre of marigold 600-gram seed, is required.

→ Chrysanthemum is a flower that is used for both cut flowers as well as loose flowers.

→ Chrysanthemum is a flower in which the terminal stem cuttings of plants are cut from old plants from the end of June to mid-July.

→ Rose is a flower that is used for both cut flowers as well as loose flowers.

→ Fully open rose flowers are harvested for marketing as loose flowers but are harvested at tight bud stage with long stems.

→ Red, orange, white, pink, and yellow coloured flowers of Gerbera are in more demand.

→ Tuberose flowers are used as loose and cut flowers for oil extraction.

→ Tuberose bulbs are planted during February-March.

→ Produce obtained for tuberose is 80,000 cut flowers or 2-2.5 ton/loose flowers per acre.

→ Motia (Jasmine) flowers are of white colored having good fragrance.

→ Soil suitable for cultivation of Motia is heavy soil with good.

This PSEB 9th Class Agriculture Notes Chapter 2 Summer Vegetables will help you in revision during exams.

PSEB 9th Class Agriculture Notes Chapter 2 Summer Vegetables

→ Any succulent part like fruit, leaf, stems, etc. of a plant that can be eaten fresh as a salad or after cooking is called a vegetable.

→ Vegetables contain carbohydrates, proteins, minerals, and vitamins.

→ For maintaining good health, the consumption of 284 grams of vegetables per person per day is essential.

→ Leafy vegetables are spinach, fenugreek, lettuce (salad), saag.

→ Root vegetables are carrot, radish, turnip.

→ The reason for low consumption per person is population explosion and post-harvest losses of vegetables.

→ Major Kharif (summer) vegetables are chilli, brinjal, okra, bitter gourd, squash melon, tomato, bottle gourd, sponge gourd, long melon, etc.

→ Varieties of chillis are Punjab surkh, Punjab Guchhedar, Chilli hybrid-1.

→ The seed rate for chilli for sowing nursery in one marla is 200 grams.

→ Varieties of tomato are Punjab Varkha Bahar-1, Punjab Varkha Bahar-2.

→ Seed rate for tomato is 100-gram seed for 2 maria nursery which is used for transplanting in one acre.

→ Varieties of Brinjal are Punjab Neelam (round fruited), BH-2 (oblong fruited), PBH-3 (small fruited).

→ The seed rate for the sowing nursery of brinjal is 300-400 grams per acre.

→ Varieties of okra are Punjab-7, Punjab-8, Punjab Padmini.

→ The seed rate for okra is 15 kg (February), 8-10 kg (March), 5-6 kg (June-July).

→ Cucurbitaceous vegetables are summer squash, bottle gourd, bitter gourd, sponge gourd, cucumber, squash melon, long melon, musk melon, etc.

→ Varieties of Summer squash – Punjab Chappan Kaddo-1.

→ Varieties of Bottle gourd – Punjab Barket, Punjab Komal.

→ Varieties of bitter gourd – Punjab-14, Punjab Kareli-1.

→ The seed rate for bitter gourd is 2 kg per acre.

→ Varieties of sponge gourd – Pusa chikni, Punjab spong gourd-9.

→ Varieties of ash gourd are – PAG-3.

→ The seed rate for each summer squash, bottle gourd, ash gourd is 2 kg per acre.

→ Varieties of cucumber – Punjab Naveen.

→ The seed rate for cucumber is one kg per acre.

→ Varieties of long melon – Punjab Long melon-1.

→ The seed rate for long melon is one kg per acre.

→ Varieties of squash melon – Tir 4a-48.

→ Seed rate for squash melon – 1.5 kg per acre.

→ Musk Melon is a vegetable scientifically.

→ Varieties of musk melon – Punjab hybrid, hara Madhu, Punjab sunehri.

→ The seed rate for musk melon is 400 grams per acre.