ISC CLASS 12 GEOGRAPHY _PASSAGE BASED QUESTION PART 2

Read the following passage very carefully and answer the questions based on it: 

Ferrous minerals constitute about 75% of the total production of minerals in India. India exports substantial amounts of ferrous minerals. Iron ore and manganese are the two important ferrous minerals mined in India. These minerals weigh more and less resistant to corrosion. Copper and bauxite are two important non-ferrous minerals mined in India. Non-ferrous minerals do not contain iron and are non metallic in nature. They are more resistant to corrosion and weigh less. The prominent ores of iron found in India are Haematite and Magnetite. Haematite is a better quality and is used by steel and sponge iron manufacturing industries of India. Magnetite is valuable as the content of iron is as high as 70%. It is mainly used as a fuel in industries situated near coal processing plants.
Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Earlier, it was used as a source of light. In the year 1820, it was used in London for the first time as street lighting. Now, it is more commonly used to provide heat for domestic and industrial purposes. Petroleum, also known as crude oil and oil, is a naturally occurring, yellowish-black liquid found in geological formations beneath the Earth's surface. Main uses of petroleum are as follows: Transportation, source of industrial power, heating and lighting, lubricants, in Petro-chemical industries etc. Petroleum, now-a-days, is the main source of energy in the world.

(i) Name any two minerals mentioned in the passage that do not contain iron. What are they termed as this characteristic of them? 

Ans. Bauxite and copper are two minerals that do not contain iron. They are termed as non-ferrous minerals.

 (ii) Mention any two differences between ferrous and non-ferrous minerals on the basis of weight and resistance to corrosion.

Ans. Differences between:

Ferrous minerals

These are less resistant to corrosion.

These minerals weigh more.

Non-ferrous minerals

These are more resistant to corrosion.

These minerals weigh less.

(iii) Name two prominent ores of iron found in India. Write their uses. 

Ans. Hematite and magnetite are two prominent ores of iron found in India.

• Hematite is used by steel and sponge iron manufacturing industries of India.

Magnetite is mainly used as a fuel in industries situated near coal processing plants. 

(iv) Name the rock in which coal is formed. Mention its main uses.

Ans. The rock in which coal is formed is known as sedimentary rocks (coal seams).

• Source of light

• Street lighting

• To provide heat for domestic and industrial purposes.

(v) This is a naturally occurring, yellowish-black liquid found in geological formations beneath the Earth's surface and a main source of energy in the world. Identify this and mention any two sectors where it is used as a source of energy.

Ans. Petroleum or crude oil. Two sectors where it is used as a source of

(i) Industrial sector, for example, petrochemical industry.

(ii) Transportation sector.

SYLLABUS OF ISC HAS BEEN CHANGED . 

The ISC Class 12 Syllabus forms the basics for higher studies. The topics studied at this level are crucial for the medical and engineering aspirants as the Class 12 topics will always be required later. So, students need to be very well acquainted with the ISC Class 12 Syllabus and prepare each syllabus topic thoroughly. They can check the syllabus of ISC Class 12 for all the subjects and can download the PDF.

SYLLABUS OF GEOGRAPHY CLICK HERE 

ISC Class 12 exam is tentatively conducted in February-March every year. The exam is conducted by Council for the Indian School Certificate Examinations (CISCE) for the Class 12 students of all the affiliated schools. The students appear only for the subjects that they have chosen in their Class 11.

It should be noted that the marks obtained in ISC Class 12 exams play a major role to get shortlisted in the desired colleges. The marks reflect one’s academic excellence and conceptual foundation. So, it is extremely important for a student to be well-prepared for the exam and secure good marks.