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Shubham Saxena ???? 5 years, 4 months ago
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Shubham Saxena ???? 5 years, 4 months ago
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Yogita Ingle 5 years, 4 months ago
In 1956 an Act was passed to establish Sinhala supremacy.
1. Sinhala was recognised as the only official language in Sri Lanka. Tamil language was not given due importance.
2. The Sri Lankan government formulated a policy in which only Sinhala applicants were preferred for positions in universities and government jobs.
3. The new constitution of Sri Lanka declare that Buddhism would be promoted by the state.
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Prashant Tiwari 5 years, 4 months ago
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Prashant Tiwari 5 years, 4 months ago
Meghna Thapar 5 years, 4 months ago
Globalization means the speedup of movements and exchanges (of human beings, goods, and services, capital, technologies or cultural practices) all over the planet. One of the effects of globalization is that it promotes and increases interactions between different regions and populations around the globe. Globalization is the word used to describe the growing interdependence of the world's economies, cultures, and populations, brought about by cross-border trade in goods and services, technology, and flows of investment, people, and information.
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Meghna Thapar 5 years, 4 months ago
The lining thickens and is richly supplied with blood to nourish the growing embryo. The embryo gets nutrition from the mother’s blood with the help of a special tissue called placenta.
Placenta is a disc like special tissue which develops between the uterus wall and the embryo after implantation. Its function is the exchange of nutrients, oxygen and waste products between the embryo and the mother. It contains villi on the embryo’s side of the tissue. On the mother’s side are blood spaces, which surround the villi. This provides a large surface area for glucose and oxygen to pass from the mother to the embryo. The developing embryo will also generate waste substances which can be removed by transferring them into the mother’s blood through the placenta. The time period from the fertilisation up to the birth of a baby is called gestation. The average gestation period in humans is about 9 months (about 38 weeks).The child is born as a result of rhythmic contractions of the muscles in the uterus.
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Yogita Ingle 5 years, 4 months ago
Resistivity is defined as the resistance offered by the material per unit length for unit cross-section. The SI unit of resistivity is Ohm.meter. Resistivity increases linearly with temperature.
Posted by Gurpreet Singh Batth 5 years, 4 months ago
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Yogita Ingle 5 years, 4 months ago
Sustainability of development is comparatively a new area of knowledge in which scientists, economists, philosophers and other social scientists are working together.
(i) Sustainability of development is comparatively a new area of knowledge in which scientists, economists, philosophers and other social scientists are working together.
(ii) In general, the question of development or progress is perennial.
(iii) At all times, as a member of society and as an individuals we need to ask where we want to go, what we wish to become and what our goals are, so the debate on development continues.
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Meghna Thapar 5 years, 4 months ago
United Nations Development Programme (UNDP) has used the criterion of Human Development Index to measure the development of countries. HDI is calculated on the basis of: Per capita income : When the total national income of the country is divided by its population, we get the per capita income. The average or per capita income is the main criterion for comparing the development of different countries.
Posted by Meghana Dumpala 5 years, 4 months ago
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Meghna Thapar 5 years, 4 months ago
The rise of nationalism in Europe initiated with the Spring of Nations in 1848. According to Leon-Baradat, nationalism calls on people to identify with the interests of their national group and to support the creation of a state – a nation-state – to support those interests. These groups hoped to drive Austria-Hungary from the Balkans and establish a 'Greater Serbia', a unified state for all Slavic people. It was this pan-Slavic nationalism that inspired the assassination of Archduke Franz Ferdinand in Sarajevo in June 1914, an event that led directly to the outbreak of World War I.
Posted by Varad Bagul 5 years, 4 months ago
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Meghna Thapar 5 years, 4 months ago
The World Bank's classification of the world's economies is based on estimates of gross national income (GNI) per capita. Previous World Bank publications might have referred to this as gross national product, or GNP. In the absence of a methodology or a consensus for how to classify countries based on their level of development, some international organizations have used membership of the Organization of Economic Cooperation and Development (OECD) as the main criterion for developed country status.
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Meghna Thapar 5 years, 4 months ago
Factors that lead to speciation include genetic drift, natural selection, geographical isolation, mutation. Geographical isolation is not a major factor in the speciation of a self-pollinating plant species as pollination occurs between the reproductive organs of the same flower. No, geographical isolation is not a major factor in the formation of new species of self-pollinated plants. This is because self-pollinated plants receive pollen grains from the same flower or another flower on the same plant and its distance from other plants hardly affects its reproduction.
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Meghna Thapar 5 years, 4 months ago
Genetic variationis advantageous to a population because it enables some individuals to adapt to the environment while maintaining the survival of the population. Genetic variation creates a larger pool of traits in a species so that given a novel environment, at least someone would have the trait needed to survive. Variation allows some individuals within a population to adapt to the changing environment. Because natural selection acts directly only on phenotypes, more genetic variation within a population usually enables more phenotypic variation.
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Meghna Thapar 5 years, 4 months ago
The process of photosynthesis takes place in the green leaves of a plant. The carbon dioxide gas required for making food is taken by the plant leaves from the air which enters the leaves through tiny pores called stomata. Water required for making food is taken from the soil which is transported to the leaves from the soil through the roots and the stem. The sunlight provides energy required to carry out the chemical reactions involved in the preparation of food. The green pigment called chlorophyll absorbs sunlight energy.
The photosynthesis takes place in three steps:
(i) Absorption of sunlight energy by chlorophyll.
(ii) Conversion of light energy into chemical energy and splitting of water into hydrogen and oxygen by light energy.
(iii) Reduction of carbon dioxide by hydrogen to form carbohydrates like glucose by utilising the chemical energy.
Posted by Nitesh Singh 5 years, 4 months ago
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Guddy Kirola 5 years, 4 months ago
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