Class 10 Geography Chapter 5 Minerals and Energy
| 1. Exercise Questions |
| 2. Intext Questions |
NCERT Solutions for Class 10 Geography Chapter 5 Minerals And Energy, Resources in this step-by-step answer guide. In some of State Boards and CBSE schools, students are taught thru NCERT books. As the chapter comes to an end, students are requested few questions in an exercising to evaluate their expertise of the chapter. Students regularly want guidance managing those NCERT Solutions.
It’s most effective natural to get stuck withinside the exercises while solving them so that you can assist students score higher marks, we’ve provided step by step NCERT answers for all exercises of Class ten Social Science Minerals And Energy Resources so you can are looking for assist from them. Students should solve those exercises carefully as questions withinside the final exams are requested from those, so these exercises immediately have an impact on students’ final score. Find all NCERT Solutions for Class ten Social Science Minerals And Energy Resources below and prepare in your tests easily.
NCERT Solutions for Class 10 Geography Chapter 5 Minerals And Energy
Class 10 Geography Chapter 5 Minerals and Energy
Exercise Questions
A. Multiple Choice Questions :
Q. 1. Which one of the following minerals are formed by decomposition of rocks , leaving a residual mass of weathered material ?
( a ) coal
( b ) bauxite
( c ) gold
( d ) zinc
Ans . ( a ) Coal
Q. 2. Koderma , in Jharkhand in the leading producer of which of the following minerals ?
( a ) bauxite
( b ) mica
( c ) iron – ore
( d ) copper
Ans . ( b ) mica
Q. 3 . Minerals are deposited and accumulated in the strata of which of the following rocks ?
( a ) sedimentary rocks
( b ) metamorphic rocks .
( c ) igneous rocks
( d ) none of the above
Ans . ( a ) sedimentary rocks .
Q. 4. Which of the following minerals is contained in Monazite sand ?
( a ) oil
( b ) uranium
( c ) thorium
( d ) coal
Ans . ( c ) thorium
B. Answer the following questions in 50 words :
Q. 1. Distinguish between the following in not more than 30 words .
( a ) Ferrous and non – ferrous minerals
( ii ) Conventional and non – conventional sources of energy
( b ) What are minerals ?
Ans . Minerals is 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 soft talc .
Q. 2. How are minerals formed in igneous and metamorphic rocks ?
Ans . They are formed when minerals in liquid / molten and gaseous forms are forced upward through cavities towards the earth’s surface . They cool and solidify as they rise . In igneous and metamorphic rocks minerals occur in the cracks , crevices faults or joints . Tin , copper , zinc and lead are obtained from both igneous and metamorphic rocks .
( iv ) Why do we need to conserve mineral resources ?
Ans . We are rapidly consuming mineral resources that require millions of years to be created and concentrated . The geological process of mineral formation is so slow that the rate of replenishment is infinitely small in comparison to the present rates of consumption . Continued extraction of ores leads to increasing costs as mineral extraction comes from greater depths along with decrease in quality . That’s the reason for conservation of mineral resources .
C. Answer the following questions in about 120 words :
Q. 1. Describe the distribution of coal in India .
Ans . Coal is the most abundantly available fuel in India as a fossil . It provides a substantial part of nation’s energy needs . In India coal occurs in rock series of two main geological ages , namely Gondwana , a little over 200 million years in ages , and in tertiary deposits which are only about 55 million years old . India’s coal fields ( nearly 75 % ) are located in the north – eastern part of southern peninsula . They mainly lie in the Damodar river valley regions ( Jharkhand and west Bengal ) , Orissa , Chhattisgarh and Madhya Pradesh . Coal also deposits in some other river valley such as Mahanandi , Godavari , Tawa etc. Some important coal fields of India are- Raniganj , Jharia , Karnapura , Deogarh , Chandrapura , Ramgarh , Rajmahal etc.
Q. 2 . Why do you think that solar energy has bright future in India .
Ans . As we know that India is a tropical country . It has enormous possibilities of tapping solar energy . The solar energy is rapidly becoming popular in rural and remote areas . Solar energy also has bright future in India because the use of solar energy shall be able to minimize the dependence of rural households on firewood and dung cakes which in turn shall contribute to environmental conservation and adequate supply of manure in agriculture .
Intext Questions
Q. 1 . Find out how many minerals are used to make a light bulb ? [ Page 48 ]
Ans . The minerals which are used to make light bulbs are :
( i ) Glass
( ii ) Tungsten
( iii ) Argon
( iv ) Aluminium
( v ) Copper
Q. 2. Collect ‘ Nutritional facts ‘ printed on food labels . [ Page 48 ]
Ans . The product is protinex and the nutritional facts are :
All these nutrients are according to per 100 g of powder .
Q. 3. What is the difference between an open pit mine , a quarry and an underground mine with shafts ? [ Page 50 ]
Ans . The difference between open pit mine , quarry and an underground mine with shafts is :
Open pit Mine
( i ) It refers to a method of extracting rocks or minerals from the earth by their renewal from an open pit .
( ii ) These mines are used when deposits of commercially useful minerals or rocks are found near the surface i.e where the overburden is relatively thin .
Quarry
( i ) It refers to a method of extracting building materials such as dimension stone . It is mainly shallower than open – pit .
( ii ) These minerals occur deep below the surface , when the overburden is thick .
Shaft :
( i ) Shaft mines have vertical access to the same via elevators that carry workers and equipment into the mines .
( ii ) It is a deepest form of underground mining .
Q.4 . Superimpose the maps showing distribution or iron – ore , manganese , coal and iron and steel industry . Do you see any correlation why ? [ Page 51 ]
Ans .
Correlation : Iron – ore , manganese and coal are found very close to each other . Iron and steel industries have also been established in the same region .
Reason : ( i ) Iron – ore and manganese are the basic raw material required for iron and steel industry .
( ii ) Coal is also required in abundance to produce energy for melting purposes .
( iii ) Raw materials required for iron and steel industry are bulky . Their transportation is very costly . Therefore , industries have been established in the regions which are rich in iron , manganese and coal .
Q. 5. Locate the mines of Bauxite on the physical map of India . [ Page 53 ]
Ans .
Q. 6 . Study the maps to explain why Chota Nagpur is a storehouse of minerals ? [ Page 54 ]
Ans . Chota Nagpur is a storehouse of minerals because Chota Nagpur is mainly made up of igneous and sedimentary rocks . Minerals like copper , zinc and lead is obtained from igneous rock and ores like coal and iron is obtained from sedimentary rocks .
Q. 7. Make a list of items where substitutes are being used instead of minerals . Where are these substitutes obtained from ? [ Page 56 ]
Ans .
Activity ( Page no . 58 )
Q. 8 Name some river valley projects and write the names of the dams built on these rivers .
Ans . The names of some river valley projects and names of the dams built on these rivers are :
( i ) Tungabhadra Project on river Tungabhadra .
( ii ) Rihand dam on river Rihand .
( iii ) Hirakud dam on river Mahanadi .
( iv ) Bhakra – Nangal dam on river Satluj .
( v ) Damodar Valley project on river Damodar .
( vi ) Gandhi Sagar dam on river Chambal .
( vii ) Nagarjuna Sagar dam on river Krishna .
( viii ) Tawa dam on river Tawa .
Activity ( Page no . 60 )
Q.9 Collect information about newly established solar power plants in India .
Ans . Students will do this themselves .
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