Resource and Development :NCERT Geography Notes for Class 10th

Resource and Development A resource is a source or supply from which a benefit is produced Everything available in our environment which can be used to satisfy our needs, provided, it's technologically accessible(may be...

Mineral and Energy Resources:Conventional and Non Conventional Sources of Energy

Conservation of Minerals We are dependent on minerals for the development We are rapidly consuming mineral resources that required millions of years to be created and concentrated. Continued extraction of ores leads to increasing...

Mineral and Energy Resources :NCERT Geography Lesson For class 10th

Mineral : A homogenous, naturally occurring substance with a definable internal structure. They are found in varied forms in nature. Rocks are combinations of minerals. A particular mineral that formed from a certain combination...

Water Resources: NCERT Notes For Class 10th Geography

How do we get Fresh Water The three-fourth of the earth’s surface is covered with water. But only a small proportion of it accounts for freshwater that can be put to use. This freshwater...

Sexual Reproduction in Human Beings : Study Notes for Class 10th Science

Reproduction in human beings Puberty-it is the period during which adolescents reach sexual maturity and become capable of reproduction During early teenage whole new set of changes occurs, appearance of body and proportions change...

Land, Soil, Water, Natural Vegetation and Wildlife Resources:NCERT Notes Geography for Class 10th

Soil Composition Ninety percent of the world population occupies only thirty per cent of land area. The remaining seventy percent of the land is either sparsely populated or uninhabited. All the economic activities...

NCERT Class 10th Science Biology Sample Test

BIOLOGY PRACTICE TEST   CLASS X MARKS 60        TIME 2HR Q1. (a) A Mendelian experiment consisted of breeding pea plants bearing violet flowers with pea plants bearing white flowers. What will be the result in...

Sexual Reproduction in Plants : Science Notes for Class 10 Biology

SEXUAL REPRODUCTION In a population variations are useful for survival of a population. Sexual mode of reproduction allows individuals to have more variations to be generated. Generation of variations in DNA copying mechanism of...

How do Organism Reproduce:Class 10th Science Notes on Biology

Reproduction  Reproduction is defined as a biological process in which an organism gives rise to young ones (offspring) similar to itself. Reproduction at its basic level involves creation of the copy of DNA DNA...

History for Class 10th NCERT : The Rise of Nationalism in Europe

Nationalism in Europe and growth of Nationalism in Europe Nineteenth Century was associated with the rise of nationalism and nation states. Nationalism in Europe can be seen from the decline of Feudalism and the...