NCERT Solutions for Class 12 Geography Fundamentals of Human Geography Chapter 9 (Hindi Medium) These Solutions are part of NCERT Solutions for Class 12 Geography. Here we have given NCERT Solutions for Class 12 Geography Fundamentals of Human Geography Chapter 9 International Trade. अभ्यास प्रश्न (पाठ्यपुस्तक से) प्र० 1. नीचे दिये गए चार विकल्पों में से…
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NCERT Solutions for Class 12 Geography Fundamentals of Human Geography Chapter 10 (Hindi Medium) These Solutions are part of NCERT Solutions for Class 12 Geography. Here we have given NCERT Solutions for Class 12 Geography Fundamentals of Human Geography Chapter 10 Human Settlements. अभ्यास प्रश्न (पाठ्यपुस्तक से) प्र० 1. नीचे दिये गये चार विकल्पों में से…
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NCERT Solutions for Class 12 Geography (Hindi Medium) NCERT Solutions for Class 12 Geography Fundamentals of Human Geography (खण्ड 1: मानव भूगोल के मूल सिद्धांत) Chapter 1 Human Geography (Nature and Scope) (मानव भूगोल – प्रकृति एवं विषय क्षेत्र) Chapter 2 The World Population (Distribution, Density and Growth) (विश्व जनसंख्या-वितरण, घनत्व और वृद्धि) Chapter 3…
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Environmental Issues – CBSE Notes for Class 12 Biology Pollution, Solid and Radioactive Wastes: 1. Pollution is an undesirable change’in the physical, chemical and biological characteristics of air, water, land and soil. (i) Pollutants are agents that cause undesirable change in the environment. (ii) The Government of India has passed the Environment Protection Act, 1986…
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Biodiversity and Conservation – CBSE Notes for Class 12 Biology CBSE Notes Biology Biodiversity: 1. Biodiversity can be defined as the occurrence of different types of genes, gene pools, species, habitats and ecosystem in a given region. (i) The term biodiversity was given by a socio biologist Edward Wilson to describe the combined diversity at…
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Ecosystem – CBSE Notes for Class 12 Biology Ecosystem—Structure and Function,- Productivity and Decomposition: 1. An ecosystem is a functional unit of nature, where living organisms interact among themselves and also with the surrounding physical environment. The word ‘Ecosystem’ was coined by Sir AG Tansley (1935). 2. The size of an ecosystem varies greatly from…
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Organisms and Populations- CBSE Notes for Class 12 Biology CBSE Notes Biology Organisms and Its Environment: 1. Ecology is the branch of biology, which studies the interactions among organisms and their physical (abiotic) environment. 2. The subject ecology is basically concerned with four levels of biological organisation. These are given below: (i) Organism Living component…
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Biotechnology and Its Applications- CBSE Notes for Class 12 Biology Biotechnological Applications in Agriculture and Medicine: 1. Biotechnology essentially deals with industrial scale production of biopharmaceuticals and biologicals. The applications of biotechnology include therapeutics, diagnostics, genetically modified crops for agriculture, processed food, bioremediation, waste treatment and energy production. 2. Biotechnology have the following three critical…
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Biotechnology: Principles and Processes – CBSE Notes for Class 12 Biology CBSE Notes Biology Principles of Biotechnology and Tools of Recombination DNA Technology: 1. Biotechnology can be defined as the use of microorganisms, plants or animal cells or their components to produce products and processes useful to humans. According to the European Federation of…
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Microbes in Human Welfare- CBSE Notes for Class 12 Biology Microbes in Household Products, Industrial Products and in Sewage Treatment: 1. Microbes are the major components of biological systems on the earth. They are present everywhere, i.e. in soil, water, air, inside our bodies and those of other animals and plants. They can also be…
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