CBSE Class 10 | Geography | Non Metallic Minerals | HD

In this module, you will learn about Non Metallic Minerals, Mica is a non-metallic mineral composed of thin leaves or sheets joined together. Mica is found in many colours, from transparent to black, green, tallow, brown and red. Mica provides excellent electrical insulation with low power loss even at very high voltages. Mica is used extensively in the electrical and electronics industries. The main mica producing regions in India are the northern Chhota Nagpur Plateau in Jharkhand, Ajmer in Rajasthan and Nellore in Andhra Pradesh. The Koderma, Gaya and Hazaribagh belt in Jharkhand is the largest producer of mica in India. Limestone is a form of sedimentary rock composed almost entirely of calcium carbonate. Limestone is mainly used in smelting iron ore and manufacturing of cement. Andhra Pradesh is the main limestone-producing state in India, followed by Madhya Pradesh, Rajasthan, Gujarat, Tamil Nadu and others. Workers engaged in mining face serious risks to their health and life. Indiscriminate mining leads to extensive deforestation. Dumping of mining waste results in soil and land degradation, and the pollution of air and fresh water bodies. We need stricter laws and the implementation of personal and environmental safety regulations to keep mining a safe activity. Usable minerals are only about 1 percent of the earth’s crust. Minerals are limited and non-renewable resources. Continuous mining starts yielding poor quality ores at much higher cost. We need to conserve our mineral resources. Recycling and reusing material and finding suitable substitutes of minerals can help us conserve our mineral resources. To watch the complete lesson, register to get 5-day full access for free visit - http://bit.ly/2KbImVd LearnNext is an interactive, computer-based self-learning solution which helps students retain concepts better and perfect them with exhaustive practice and tests. Through HD animated videos, practice papers and all-India tests, detailed performance reports and other exciting features, LearnNext helps students in achieving conceptual clarity and creating a strong academic base. To Subscribe: https://www.youtube.com/channel/UCB6ztajkwjXivfuI3M5tpEw Like us on Facebook https://www.facebook.com/LearnNext/ Follow us on Twitter https://twitter.com/learnnext?lang=en Follows us on blog https://www.nextgurukul.in/KnowledgeWorld/nexteducation-blog/ Follows us on Google+ https://plus.google.com/+LearnNext Website https://www.learnnext.com/ For any query and explanation please write support@learnnext.com