by admin | May 31, 2015 | sem3
Changes caused by agriculture and overgrazing Agriculture is the world’s oldest and largest industry; more than half of all the people in the world still live on farms. But, because of production, processing and distribution of food — and that took on a large scale...
by admin | May 31, 2015 | sem3
Environmental Effects of Extraction Mineral Resources Environmental costs of extracting mineral resources are explained in terms of land degradation, solid waste, air and water pollution, vibrations and health hazards. (a) Land Degradation: In Underdeveloped...
by admin | May 31, 2015 | sem3
over exploitation of mineral resources (a) Mining is hazardous occupation: 1. This occupation involves several health risk dust produced during mining operation are injurious to health and cause lung diseases. 2. Extraction of some toxic or radioactive minerals leads...
by admin | May 31, 2015 | sem3
Mineral resources Types of Mineral Resources: Useful Notes on the Types and Uses of Mineral Resources ! Mineral refers to the inorganic substances which are produced in nature and are obtained in some combined state. The process of extracting out mineral from earth is...
by admin | May 31, 2015 | sem3
Use and over utilization of surface and ground water 1. Agriculture Needs of Water for the Crops: As our country is essentially an agricultural based country, the crops are to be developed for the production of different types of food grains. The requirement of water...
by admin | May 31, 2015 | sem3
Water resources More than 99% of Earth’s water in its natural state is unavailable or unsuitable for human use. Thus, the amount of freshwater for which all the people, animals and plants on earth compete is even less than 1%. This water which is available as fresh...
