Complete Explanation of CBSE Notes
CBSE Class 11 Geography Chapter 5 Minerals and Rocks Notes Minerals are naturally occurring substance. Minerals are formed through geological processes and are found in various forms in nature. They are also obtained from rocks. The study of minerals is called ‘Mineralogy’. Minerals generally occur in igneous, sedimentary, and metamorphic rocks. Minerals are usually found in …
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CBSE Class 11 Geography Chapter 4 Distribution of Oceans and Continents Notes Alfred Wegener, a German meteorologist put forth “the Continental Drift Theory” in 1912. About 300 years ago, all the continents formed a single continental mass. The super continent was named ‘Pangaea’, which meant ‘all earth’. A mega ocean surrounded ‘Pangaea’, which was called ‘Panthalassa’, …
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CBSE Class 11 Geography Chapter 3 Interior of the Earth Notes Earth is a dynamic planet. The surface of the earth is visible to us, but how can we know about the interior of the earth? There are direct and indirect sources to study about the interior structure of the earth. Direct sources include volcanic eruptions, mining …
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CBSE Class 11 Geography Chapter 2 The Origin and Evolution of the Earth Notes Earth and the other celestial bodies in the solar system has always been a subject of fascination for all of us. People, since the early times were eager to know about the origin of Earth and the evolution of life on it. …
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CBSE Class 11 Geography Chapter 1 Geography as a Discipline Geography is the description of the earth. The term geography was first coined by Eratosthenes. It is derived from two roots from the Greek language: Geo meaning earth and graphos meaning description. Scholars defined Geography as the description of the earth as the abode of human …
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CBSE Notes for Class 11 Geography The term geography was first devised by Eratosthenes, a Greek scholar (276-194 BC.). Geography is a discipline of the combination of spatial synthesis and temporal synthesis. According to geography, Earth is described as the abode of human beings. Landforms provide the foundation on which anthropogenic activities are placed. The …
CBSE Notes for Statistics for Economics Chapter 8 An index number is not an absolute measure, it measures the percentage change in a variable over time. It does so by comparing the value of a variable at present to its value at a base year. Index number gives a quantitative foundation to qualitative statements like prices …
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CBSE Notes for Statistics for Economics Chapter 7 There are many situations in our daily life where we know from experience, the direct association between certain variables but we can’t put a certain measure to it. For example, you know that the chances of you going out to watch a newly released movie is directly …
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CBSE Notes for Statistics for Economics Chapter 6 The absolute measures of dispersion accurately display the dispersion of data in a given series. However, a drawback to them is that we cannot use them to compare dispersion for series that are in different units. The concept of relative measures of dispersion overcomes this limitation. Please …
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CBSE Notes for Statistics for Economics Chapter 5 When working on a given set of data, it is not possible to remember all the values in that set. But we require inference of the data given to us. This problem is solved by mean median and mode. These, known as measures of central tendency, represent all …
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