Ncert Class 10th Geography Chapter 5 Learning
Formulae Handbook for Class 10 Maths and Science. Rocks are combinations or aggregates of minerals in varying proportions. Some rocks consist of a single mineral, e.
Four types of ncert class 10th geography chapter 5 learning ores are: Magnetite, Hematite, Siderite and Limonite. Two Ncert Class 10th Geography Chapter 5 Learning best ores are:. Aluminium is obtained from bauxite ore.
It is an important metal Ncert Class 10th Geography Chapter 5 Learning because�it has the strength of metals such as iron, and is extremely light at the same time; ncert class 10th geography chapter 5 learning has good conductivity; and it has great malleability. Bauxite deposits are formed by the decomposition of a wide variety of rocks rich in aluminium silicates.
The ncert class 10th geography chapter 5 learning important bauxite deposits are found in Panchpatmali in Koraput district.
Mica is made up of a series of plates or leaves. It splits easily into such thin sheets that a thousand put together are only a few centimeters. Mica is indispensable for electric and electronic industry because it Ncert Class 10th Geography Chapter 5 Learning has �. Mica deposits are found in the northern edge of Chhota Nagpur Plateau. Jharkhand is the leading producer. The important mica producing belt here is Koderma-Gaya-Hazaribagh.
Conventional sources include coal, petroleum, natural gas and electricity both hydel and thermal. All these sources have been in use for quite some time.
Non-conventional sources of energy are relatively new sources as their large scale generation has started recently. These include solar, wind, tidal, geothermal, biogas and Ncert Class 10th Geography Chapter 5 Learning atomic energy. Four types of coal and their characteristics: a Anthracite �1. It is the highest quality hard coal; 2. It gives less smoke. Metallurgical coal is high grade bituminous 10th Ncert Class Chapter Learning Geography 5 Ncert Class 10th Geography Chapter 5 Learning coal and is of special value for smelting iron in blast furnaces.
It is a low grade brown coal; 2. It is soft Ncert Solutions Of Class 10th Maths Chapter 7 Coordinate Geometry with high moisture content. The main lignite Ncert Class 10th Geography Chapter 5 Learning reserve is Neyveli in Tamil Nadu. It has a low carbon and high moisture Ncert Class 10th Geography Chapter 5 Learning content; 2. It has low heating capacity and gives lot of smoke on burning.
Petroleum: It is the second most important energy source of India after coal. It can be easily trans-ported by pipelines and does not leave any residue. It provides fuel for heat Ncert Class 10th Geography Chapter 5 Learning Ncert Class 10th Geography Chapter 5 Learning and light. It provides lubricants for machinery.
It provides raw material for a number of manufacturing industries. It is an important fuel used in transportation sector. Occurrence and formation of petroleum: Most of the petroleum occurrences in India are associated with anticlines and fault traps in the rock formations of the tertiary age. In regions of folding anticlines it occurs where oil is trapped in the crest of the upfold.
The oil bearing layer is porous limestone or sandstone through which oil may flow. Petroleum is also found in fault traps between porous and non-porous rocks. Importance of energy: Energy is required for all activities. It Ncert Class 10th Geography Chapter 5 Learning is needed to cook, to provide light and heat, to Class 10th Ncert Geography Chapter 1 Test propel vehicles and to Ncert Class 10th Geography Chapter 5 Learning drive machinery in industries.
It is the basic requirement for economic development. Every sector of Ncert Class 10th Geography Chapter 5 Learning national economy�agriculture, industry, transport and commerce needs greater inputs of energy.
Energy demands, in the form of electricity, are growing because of increasing use of electrical gadgets and appliances. If you have any query regarding Minerals and Energy Resources Class 10 Geography Chapter 5 Notes, drop a comment below and we will get back to you at the earliest.
Minerals generally occur ncert class 10th geography chapter 5 learning the following forms: Veins and lodes. In Ncert Class 10th Geography Chapter 5 Learning igneous and metamorphic rocks minerals may occur in the cracks, faults or joints by getting solidified in. The smaller occurrences are called veins and the larger lodes, e. In 5 10th Chapter Class Geography Ncert Learning sedimentary rocks minerals occur in beds or layers.
They are formed as a result of deposition, accumulation and concentration in horizontal strata. Some sedimentary minerals are formed as a Ncert Class 10th Geography Chapter 5 Learning result of evaporation, especially ncert class 10th geography chapter 5 learning arid regions, e. Another Ncert Class 10th Geography Chapter 5 Learning mode ncert class 10th geography chapter 5 learning formation involves decomposition of surface rocks and the removal of soluble contents, leaving a residual mass of weathered material containing ores.
Bauxite Ncert Class 10th Geography Chapter 5 Learning is formed this way. Placer deposits. Certain minerals occur as alluvial deposits in sands of Ncert Class 10th Geography Chapter 5 Learning valley floors and the base of hills, e.
These are called placer deposits and contain Ncert Class 10th Geography Chapter 5 Learning minerals which are not corroded by water. Ocean waters contain vast quantities of minerals, e. The ocean beds are rich in manganese nodules. It has excellent magnetic qualities and is especially valuable in the electrical industry. Hematite �It is the most important industrial iron ore in terms of quantity used.
Iron ore from these mines is exported to Japan and South Korea. The ore is transported as slurry to a port near Mangalore. Iron ore is exported through Marmagao port. Mica is indispensable for electric and electronic industry because it Ncert Class 10th Geography Chapter 5 Learning has � excellent di-electric strength; Low power loss factor; Insulating properties; and Resistance to high Ncert Class 10th Geography Chapter 5 Learning voltage. Dangers involved in mining are� The risk of collapsing mine roofs; Inundation, i.
Adverse effects of mining on the environment: The water sources in the region get contaminated; Dumping of the slurry and waste leads Ncert Solutions Of Class 10th Geography Chapter 6 Failed to degradation of land and soil; and It also leads to an increase in stream and river pollution.
Conservation of minerals is necessary because: Ncert Class 10th Geography Chapter 5 Learning The formation of minerals takes a long geological period of millions of years. They are finite in nature, non-renewable and exhaustible.
The rate of replenishment of minerals is infinitely small Ncert Class 10th Geography Chapter 5 Learning in comparison to rate of consumption. They have to be preserved for our future generations.
Methods of mineral conservation: We should use minerals in a planned and sustainable manner. Improved technologies need to be evolved to allow use of Ncert Solutions Of Class 10th Geography Chapter 3 Lab low grade ores at low Geography Learning 5 10th Ncert Class Chapter cost. Recycling of metals, using scrap metals and other substitutes. Controlled export of minerals. Energy resources can be classified as conventional and non-conventional sources.
It is used for power generation, Ncert Class 10th Geography Chapter 5 Learning to supply energy for industrial and domestic needs. India is highly dependent on coal for Ncert Class 10th Geography Chapter 5 Learning meeting its commercial needs. It can easily be converted into other forms of energy�electricity, gas, oil. Coal as an industrial raw material: It is an indispensable raw material for iron Ncert Class 10th Geography Chapter 5 Learning and steel industry.
It provides raw material for chemical industries and synthetic textile industries. Many Ncert Class 10th Geography Chapter 5 Learning coal-based products are processed in industries, e.
Power generation industry is mainly based on this fossil fuel. Occurrence of coal: Gondwana Coal Belt�A little over million years in age.
Tertiary Ncert Class 10th Geography Chapter 5 Learning Ncert Class 10th Geography Chapter 5 Learning coal deposits are only about 55 million years old, i. Distribution of petroleum: Mumbai High�It is an offshore oilfield and is the richest oilfield of India. Ankaleshwar is the most important field; and Assam�It is the oldest oil producing State of India. Important oilfields are Digboi, Naharkatiya and Moran-Hugrijan. When the structure of an atom is altered, too much energy is released in the form of heat.
This heat is utilised to generate electric power. Uranium Ncert Class 10th Geography Chapter 5 Learning and Thorium are used for generating atomic power. These minerals are available in Jharkhand, Aravalli ranges of Rajasthan. Solar Energy: Photovoltaic technology is ncert class 10th geography chapter 5 Ncert Class 10th Geography Chapter 5 Learning learning to convert solar energy into electricity. The largest solar plant of India is located Chapter Geography Learning 5 10th Ncert Class at Madhapur near Bhuj.
Solar energy holds great promises for the future. It can help Ncert Class 10th Geography Chapter 5 Learning in minimizing the dependence on firewood and animal dung cakes in rural areas. This will also help in conservation of fossil fuels.
Andhra Pradesh, Karnataka, Gujarat, Kerala, Maharashtra and Ncert Class 10th Geography Chapter 5 Learning Lakshadweep are also important centres of wind power production. Biogas: Biogas can be produced from shrubs, farm waste, and animal and human waste. It is more efficient than kerosene, dung cake and charcoal. Biogas plants can be set ncert class 10th geography chapter 5 learning Ncert Class 10th Geography Chapter 5 Learning at municipal, cooperative and individual levels.
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