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The sources of energy which have been invented in recent times and are more efficient and comfortable are considered as the non-conventional sources of energy. Answer: A mineral can be defined as a homogenous, naturally occurring substance with a definable internal structure. Minerals are found in varied forms in nature, ranging from the hardest diamond to the softest talc. Answer: In igneous and metamorphic rocks, minerals may occur in the cracks, crevices, faults or joints.
The smaller deposits are called veins and the larger ones are called lodes. Metallic minerals like tin, copper, zinc and lead are obtained from veins and lodes. Answer: We need to conserve mineral resources as they are limited on the earth. It takes billions of years for them to be replenished in nature. Continued extraction of ores leads to increasing costs of extraction and a decrease in quality as well as quantity. It takes millions of years for the formation of minerals.
Thus, as compared to the current rate of consumption, the rate of replenishment of minerals is very slow. In India, major coal deposits Ncert Solutions For Class 10th Geography Chapter 5 Min are found on the eastern side of the country. Some of the main sites of coal are described below:. Solar energy is a renewable source of energy produced from the sunlight. Make your learning experience enjoyable by preparing from the quick links available on this page. All the Solutions are covered as per the latest syllabus guidelines. Dig a Little Deeper Question 1.
Find out how many minerals are used to make a light bulb? Answer: Minerals Ncert Solutions Of Class 10th Hindi Chapter 12 used to make different parts of a light bulb are- Parts of a light bulb � Minerals used. Question 2. Answer: A sample of nutritional facts printed on a packet of salty biscuits Patanjali Jeera Bites Ncert Solutions Class 10th History Chapter 7 Math is given below:. Question 3. What is the difference between an open-pit mine, a quarry and an underground mine with shafts? Question 4. Superimpose the maps showing distribution of iron ore, manganese, coal and iron and steel industry.
Do you see any correlation? Answer: The iron and steel industries are located in the same regions of India where the iron ore, coal and manganese mines are located. As coal and manganese are required as inputs to the iron and steel industry, their availability in the same region saves on transportation costs as well as on ease of availability.
Thus, it is profitable to locate these industries in the regions where these minerals are found. Question 5. Locate the mines of bauxite on the physical map of India. Question 6. Study the maps to explain why Chota Nagpur is a storehouse of minerals. Answer: Chota Nagpur is a storehouse of minerals because of the following reasons.
Question 7. Make a list of items where substitutes are being used instead of minerals. Where are these substitutes obtained from? Answer: Natural gas and oil may be the substitute of coal. Wood or plastic may be substitute of steel, iron and copper. Answer the following questions in about 30 words. Answer: Mineral is a homogenous, naturally occurring substance with a definable internal structure.
Minerals are found in varied forms in nature, ranging from the hardest diamond to the softest talc. Answer: In igneous and metamorphic rocks, minerals occur in the cracks, crevices, faults or joints. The smaller occurrences are called veins and the larger are called lodes. Metallic minerals like tin, copper, zinc and lead etc. Answer the following questions in about words. Answer: In India, coal occurs in rock series of two main geological areas, namely Gondwana, a little over million years in age and in tertiary deposits which are only about 55 million years old.
Answer: India being a tropical country has great possibilities of tapping solar energy. Photovoltaic technology converts sunlight directly into electricity. Solar energy is becoming popular in rural and remote areas of India fastly.
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