Which of the following are true with regard to coal in India? I. Coal is found in sedimentary rocks II. The best quality of coal is lignite III. The largest and oldest coalfied in india is known as the ruhr of india IV. The Damodar river valley is popularly known as the 'Ruhr of India'

Which of the following are true with regard to coal in India?
I. Coal is found in sedimentary rocks
II. The best quality of coal is lignite
III. The largest and oldest coalfied in india is known as the ruhr of india
IV. The Damodar river valley is popularly known as the 'Ruhr of India'

A

I and IV

B

I, II and III

C

I, II and IV

D

II, III and IV

Which of the following are true with regard to coal in India? I. Coal is found in sedimentary rocks II. The best quality of coal is lignite III. The largest and oldest coalfield in India is known as the 'Ruhr of India'. IV. The Damodar river valley is popularly known as the Ruhr of India.

A

I and IV

B

I, II and III

C

I, III and IV

D

II, III and IV

Which of the following are true with regard to coal in India?
I. Coal is found in sedimentary rocks
II. The best quality of coal is lignite
III. The largest and oldest coalfield in India is known as the 'Ruhr of India'.
IV. The Damodar river valley is popularly known as the Ruhr of India.

A

I and IV

B

I, II and III

C

I, III and IV

D

II, III and IV

Consider the following statements about the sedimentary rocks: 1. Sedimentary rocks are formed by lithification. 2. Coal deposits occur in river basins of the Damodar, Mahanadi, the Godavari in the Gondwana sedimentary deposits. 3. They hold the most informative geological records due to the marks left behind by various geophysical (weather patterns, wind, and water flow) and biological activities (fossils). 4. Granite, gabbro, basalt, are some of the examples of sedimentary rocks. Which of these statements are correct?

A

1 and 2 only

B

1, 2 and 3 only

C

2, 3 and 4 only

D

1, 3 and 4 only

Which of the statements is/are correct?
1. Igneous rocks are classified into Extrusive and Intrusive rocks.
2. Sedimentary rocks are also called as Primary rocks
3. Marble is an example of Metamorphic rocks
4. Coal is a sedimentary rock

A

1 only

B

2 and 3

C

1, 3 and 4

D

2 and 4

Consider the following statements.
1. Main tributary of Damodar river is Barakar.
2. Origin point of Sone river is Barakar.
3. Damodar valley corporation is also known as the Ruhr of India.
4. Gumani river of Jharkhand originates from Rajmahal hill.
Which of statements given above are correct?

A

1, 2 and 3

B

2, 3 and 4

C

1, 3 and 4

D

1, 2 and 4

Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.
Crude mineral oil comes out of the earth as a thick brown or black liquid with a strong smell. It is a complex mixture of many different substances, each with its own individual qualities. Most of them are combinations of hydrogen and carbon in varying proportions. Such hydrocarbons are also found in other forms such as bitumen, asphalt and natural gas. Mineral oil originates from the carcasses of tiny animals and from plants that live in the sea. Over million of years, these dead creatures form large deposits under seabed and ocean currents cover them with a blanket of sand and silt. As this material hardens, it becomes sedimentary rock and effectively shuts out the oxygen, thus preventing the complete decomposition of the marine deposits underneath. The layers of sedimentary rocks become thicker, and heavier. Their pressure produces heat, which transforms the tiny carcasses into crude oil in a process that is still going on today.
Sedimentary rocks leads to the formation of oil deposits because

A

their pressure produces heat and turns deposits of animal carcasses and plants into oil.

B

it turns heavy and shuts out the oxygen

C

it becomes hard and forms into rocks to squeeze oil

D

it becomes light and soft and applies pressure to produce oil

Consider the following: Type of Rocks Process of formation 1.Igneous Rocks Formed out of existing rocks undergoing recrystallization 2.Sedimentary Rocks The result of the deposition of fragments of rocks by exogenous processes. 3.Metamorphic Rocks Solidified from magma and lava Which of the above pair/s is/are correctly matched?

A

1 only

B

2 only

C

2 and 3 only

D

None of the above

Consider the statement A, B, C on igneous rocks and choose the correct answer. Statement (A): Sedimentary rocks, when subjected to heat and pressure turn into igneous rocks. Statement (B): These rocks are found both on the earth's crust and deep inside the earth's crust. Statement (C): Granite and Basalt are examples of igneous rocks.

A

B and C are correct and A is incorrect.

B

A, B and C all are correct.

C

A and B are correct and C is incorrect.

D

A and C are correct and B is incorrect.

Consider the following statements and choose the correct answer:
1. It is in the sedimentary rocks that fossils are found
2. Sedimentary rocks arise as a result of gradual deposition of silt or silica at the bottom of lakes or seas
3. Igneous rocks are those in which the original structure has been changed by heat or pressure
4. Entire plants or animals or more commonly their parts are found fossilised

A

Only 1, 2 and 3 are true

B

Only 1, 2 and 4 are true

C

Only 3 and 4 are true

D

1, 2, 3 and 4 are true

Which of the following are true with regard to coal in India? I. Coal is found in sedimentary rocks II. The best quality of coal is lignite III. The largest and oldest coalfied in india is known as the ruhr of india IV. The Damodar river valley is popularly known as the 'Ruhr of India'

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