Articles
NCERT Chapter Summary: India's External Relations
India was born in a very trying and challenging international context. The world had witnessed a devastating war and was grappling with issues of reconstruction; yet another attempt to establish an international body was underway; many new countries were emerging as a result of the collapse of colonialism; and most new nations were trying to come to terms with the twin challenges of welfare and democracy. Free India’s foreign policy reflected all these concerns in the period immediately after Independence.
NCERT Chapter Summary: Rise of Popular Movements
Three decades after Independence, the people were beginning to get impatient. Their unease expressed itself in various forms. In the previous chapter, we have already gone through the story of electoral upheavals and political crisis. Yet that was not the only form in which popular discontent expressed itself. In the 1970s, diverse social groups like women, students, Dalits and farmers felt that democratic politics did not address their needs and demands.
NCERT Chapter Summary: Regional Aspirations
1980s may be seen as a period of rising regional aspirations for autonomy, often outside the framework of the Indian Union. These movements frequently involved armed assertions by the people, their repression by the government, and a collapse of the political and electoral processes.
NCERT Chapter Summary: Recent Developments in Indian Politics
First the most crucial development of this period was the defeat of the Congress party in the elections held in 1989. The party that had won as many as 415 seats in the Lok Sabha in 1984 was reduced to only 197 in this election. The Congress improved its performance and came back to power soon after the mid-term elections held in 1991.
NCERT Chapter Summary: Challenges of Nation Building
At the hour of midnight on 14-15 August 1947, India attained independence. Jawaharlal Nehru, the first Prime Minister of free India, addressed a special session of the Constituent Assembly that night.
NCERT Chapter Summary: International Organisations
The potential reform of the United Nations Security Council is an interesting case of the reform process and its difficulties. We then turn to India’s involvement in the UN and its view of Security Council reforms. The chapter closes by asking if the UN can play any role in dealing with a world dominated by one superpower.
NCERT Chapter Summary: Security in the Contemporary World
We hear that an issue is a security issue and that it is vital for the well-being of the country. The implication is that it is too important or secret to be debated and discussed openly.
NCERT Chapter Summary: Contemporary South Asia
When India and Pakistan joined the club of nuclear powers, this region suddenly became the focus of global attention. The focus was, of course, on the various kinds of conflict in this region: there are pending border and water sharing disputes between the states of the region. Besides, there are conflicts arising out of insurgency, ethnic strife and resource sharing.
NCERT Chapter Summary: Globalisation
In this final chapter of the book we look at globalisation, something that has been referred to in many chapters of this book and textbooks of many other subjects. We begin by analysing the concept of globalisation and then examine its causes.
NCERT Chapter Summary: The End of Bipolarity
The Berlin Wall, which had been built at the height of the Cold War and was its greatest symbol, was toppled by the people in 1989. This dramatic event was followed by an equally dramatic and historic chain of events that led to the collapse of the ‘second world’ and the end of the Cold War.
NCERT Chapter Summary: Structure and Physiography
Do you know that our earth also has a history. The earth and its landforms that we see today have evolved over a very long time. Current estimation shows that the earth is approximately 460 million years old.
NCERT Chapter Summary: Climate (Class 11)
The monsoon regime emphasises the unity of India with the rest of southeast Asian region. This view of broad unity of the monsoon type of climate should not, however, lead one to ignore its regional variations which differentiate the weather and climate of different regions of India.
NCERT Chapter Summary: Natural Vegetation
Natural vegetation refers to a plant community that has been left undisturbed over a long time, so as to allow its individual species to adjust themselves to climate and soil conditions as fully as possible. India is a land of great variety of natural vegetation.
NCERT Chapter Summary: Natural Hazards and Disasters
Change is the law of nature. It is a continuous process that goes on uninterruptedly involving phenomena, big and small, material and non- material that make our physical and socio-cultural environment. It is a process present everywhere with variations in terms of magnitude, intensity and scale.
NCERT Chapter Summary: Landforms and their Evolution
After weathering processes have had their actions on the earth materials making up the surface of the earth, the geomorphic agents like running water, ground water, wind, glaciers, waves perform erosion. It is already known to you that erosion causes changes on the surface of the earth. Deposition follows erosion and because of deposition too, changes occur on the surface of the earth.
NCERT Chapter Summary: Composition and Structure of Atmosphere
The atmosphere is composed of gases, water vapour and dust particles. The proportion of gases changes in the higher layers of the atmosphere in such a way that oxygen will be almost in negligible quantity at the height of 120 km. Similarly, carbon dioxide and water vapour are found only up to 90 km from the surface of the earth.
NCERT Chapter Summary: Atmospheric Circulation and Weather Systems
Air expands when heated and gets compressed when cooled. This results in variations in the atmospheric pressure. The result is that it causes the movement of air from high pressure to low pressure, setting the air in motion. You already know that air in horizontal motion is wind.
NCERT Chapter Summary: Movements of Ocean Water
The ocean water is dynamic. Its physical characteristics like temperature, salinity, density and the external forces like of the sun, moon and the winds influence the movement of ocean water. The horizontal and vertical motions are common in ocean water bodies. The horizontal motion refers to the ocean currents and waves. The vertical motion refers to tides.
NCERT Chapter Summary: Interior of the Earth
What do you imagine about the nature of the earth? Do you imagine it to be a solid ball like cricket ball or a hollow ball with a thick cover of rocks i.e. lithosphere? Have you ever seen photographs or images of a volcanic eruption on the television screen?
NCERT Chapter Summary: Distribution of Oceans and Continents
You know that continents cover 29 per cent of the surface of the earth and the remainder is under oceanic waters. The positions of the continents and the ocean bodies, as we see them in the map, have not been the same in the past.
NCERT Chapter Summary: Land Resources and Agriculture
Land-use records are maintained by land revenue department. The land use categories add up to reporting area, which is somewhat different from the geographical area. The Survey of India is responsible for measuring geographical area of administrative units in India. Have you ever used a map prepared by Survey of India?
NCERT Chapter Summary: Water Resources (Class 12)
India accounts for about 2.45 per cent of the world’s surface area, 4 per cent of the world’s water resources and about 16 per cent of the world’s population. The total water available from precipitation in the country in a year is about 4,000 cubic km.
NCERT Chapter Summary: Mineral and Energy Resources
Metallic minerals are the sources of metals. Iron ore, copper, gold produce metal and are included in this category. Metallic minerals are further divided into ferrous and non-ferrous metallic minerals.
People's Participation in Democratic Process
In a Democracy, people's participation is very important. People, participate to elect their representatives by voting in elections. Discussing the working of the government, public debates, newspaper’s editorials, protest demonstrations, public meetings working for a political party and standing as a candidate are all examples of people's participation.
Biodiversity in India
The diversity of plants and animal provide us food, fuel, medicine, shelter and other essentials without which we cannot live. These species have evolved over thousands of years. This rich diversity is being lost at an alarming rate due to human activities.
Transport and Communication
Transport and Communication is the life line of the country. The major role of transport is to facilitate trade and commerce by carrying goods, movement of people from one place to another. The communication keeps on updating information about the world's events. It helps in establishing the social, cultural and economic relationships.
Linear Equations
The value of an algebraic expression depends on the values of the variables involved it. A polynomial in one variable whose degree is one is called a linear polynomial in one variable. When two expressions are separated by an equality sign, it is called an equation.
NCERT Chapter Summary: Population - Distribution, Density, Growth and Composition
The people are very important component of a country. India is the second most populous country after China in the world with its total population of 1,210 million (2011). India’s population is larger than the total population of North America, South America and Australia put together.
NCERT Chapter Summary: Human Settlements
Human Settlement means cluster of dwellings of any type or size where human beings live. For this purpose, people may erect houses and other structures and command some area or territory as their economic support-base. Thus, the process of settlement inherently involves grouping of people and apportioning of territory as their resource base. Settlements vary in size and type.
NCERT Chapter Summary: Secondary Activities
All economic activities namely primary, secondary, tertiary and quaternary, revolve around obtaining and utilising resources necessary for survival. Secondary activities add value to natural resources by transforming raw materials into valuable products.
NCERT Chapter Summary: Tertiary and Quaternary Activities
When you fall ill you go to your family doctor or you call a doctor. Sometimes your parents take you to a hospital for treatment. While in school, you are taught by your teachers. In the event of any dispute, legal opinion is obtained from a lawyer.