Forest Based Industries

  Introduction   India is very rich in forest resources, with a large area under forest. All kinds of trees are found here varying from the deciduous, tropical hardwood trees to the evergreen and coniferous trees.   Trees provide one with a wide range of products. From paper to paints, chemicals, housing and furniture, they … Read more

Races of India

A race is a grouping of humans based on shared physical or social qualities into categories generally viewed as inherently distinct by society. India is a multicultural country. Anthropologists are committed to grasping the dynamics of communities and populations. As anthropology combines the premises of a biological as well as well as socio-cultural study, it looks at … Read more

Sustainable development : concept and indicators of sustainable development

Mahatma Gandhi’s principle of “enoughness” in his saying “the earth provides enough to satisfy every persons need but not for every person’s greed” According to World Commission on Environment and Development, Our Common Future (1987) , Sustainable development is development that meets the needs of the present without compromising the ability of future generations to … Read more

Construction Materials and clays

Construction Materials and clays Construction material is any material used for construction purpose such as materials for house building. Wood, cement, aggregates, metals, bricks, concrete, clay are the most common type of building material used in construction. The choice of these are based on their cost effectiveness for building projects. Many naturally occurring substances, such … Read more

ENVIRONMENT POLLUTION

  defined as ‘an addition or excessive addition of certain materials to the physical environment (water, air and lands), making it less fit or unfit for life’. Pollutants are the materials or factors, which cause adverse effect on the natural quality of any component of the environment. Classifications According to the form in which they … Read more

Humidity And Precipitation

    Atmospheric humidity, which is the amount of water vapour or moisture in the air, is another leading climatic element, as is precipitation. All forms of precipitation, including drizzle, rain, snow, ice crystals, and hail, are produced as a result of the condensation of atmospheric moisture that forms clouds in which some of the … Read more

Mineral Based Industries

  Iron and Steel Industry:   Pig Iron Pig iron is the intermediate product of smelting of iron ore with a high-carbon fuel such as coke and charcoal and is the basic raw material in Foundry and Casting Industry for the manufacture of various types of castings required for engineering sector. Pig iron usually has … Read more

Environmental Impact Assessment (EIA)

Notification on Environmental Impact Assessment (EIA) of developmental projects 1994 under the provisions of Environment (Protection) Act, 1986 making EIA  mandatory for 29 categories of developmental projects. One more item was added to the list in January, 2000. environmental impact assessment statutory for 30 activities Environment Impact Assessment Notification of 2006 has categorized the developmental … Read more

Road and Transport of India

Road Sector Road transport is considered to be one of the most cost effective and preferred modes of transport, both for freight and passengers, keeping in view its level of penetration and last mile connectivity in populated areas. A good road network is vital to the economic development and social integration of the country. It … Read more