Geography INTERNAL STRUCTURE OF EARTH

 

Geography Environment questions

December 01, 2023

1.There was originally one landmass on earth and
is called as-

(A) Pangea
(B) Laurasia 
(C) Gondwanaland 
( D) Tethys

Ans

2.Metamorphic rocks originated from-

(A) Igneous rocks
(B) Sedimentary
(C) Igneous and Sedimentary
(D) None of the above

Ans

3. Earth's lithosphere includes-

(A) Crust and Upper most mantle
(B) Crust and Lower most mantle
(C) Crust and Core
(D) Mantle and Core

Ans 

4. Which of the following are true regarding the crust of the earth?
Select the correct answer from the codes given below:-

1. It is the outer thin layer with a total thickness of about 100 km.
2. It forms around 0.5 percent of the earth's volume.
3. The outer covering of the crust is of sedimentary material.
4. The lower layer of the continental crust consists of basaltic rocks.

Codes:-
(A) 1 and 2
(B) 1, 2 and 4
(C) 1, 2 and 3
(D) 1, 2, 3 and 4

Ans 

5 Consider the following statements:-

1. The whole core is in a molten state.
2. The outer core is in a solid state and the inner core is in a molten state.
3. The outer core is in a molten state and the inner core is in a solid state.
4. The whole core is in a solid state.

Which of the statements given above are correct?
Codes:-

(A) 1 is true
(B) 3 is true
(C) 2 is true
(D) 4 is true

Ans

6. Sea floor spreading results from 

(A) Convergence
(B) Divergence
(C) Lateral displacement 
(D) None of these

Ans

7.The movement of denser plate inwards towards the interior of earth during collision is called

(A) Subduction
(B) Cocos plate
(C) Lateral displacement
(D) None of these

Ans

8.Which of the following is/are the evidence of sea floor spreading?

1. Volcanic activity along the mid oceanic ridges.
2. Increasing age of rocks away from the oceanic ridges.
3.Similarities of magnetic properties on either side of oceanic ridges.

Select the correct answer using the codes given below:-

(A) 1 and 2 only
(B) 3 only
(C) 2 and 3 only
(D) 1, 2 and 3

Ans 

9.Which of the following evidence was proposed by Alfred Wegener in support of the theory of Continental Drift?

1. Matching of the shorelines of continents.
2. Ancient rocks of the Brazil coast match with those from western Africa.
3. Presence of Tillite and placer deposits across continents.
4. Distribution of fossils
.
Select the correct answer using the codes given below:-

(A) 1, 3 and 4 only
(B) 2 and 3 only
(C) 1, 2 and 3 only
(D) 1, 2, 3 and 4

Ans 

10  Consider the following statements with reference to acidic and basic lavas:-

1. Acidic lavas are hotter than basic lavas.
2. Acidic lavas contain a higher percentage of silica than basic lavas.
3. Basic lavas flow slowly and are more viscous than acidic lavas.

Which of the statement(s) given above is/are not correct?

(A) 1 and 2 only
(B) 2 only
(C) 1 and 3 only
(D) 1, 2 and 3

Ans 

11.Which of the following statement(s) is/are correct regarding Volcanoes?

1. Shield Volcanoes are made up of basalt.
2.Composite Volcanoes are made of highly fluid lava.

Select the correct answer using the codes given below:-

(A) 1 only
(B) 2only
(C) 1 and 2 
(D ) None of the above

Ans

12. The rocks formed inside earth after the solidification of Magma is called-

(A) Plutonic Rock
(B) Volcanic rocks
(C) Metamorphic rocks
(D) Sedimentary rocks

Ans

13.Which is the melted/molten element inside earth?
 
(A) Lava
(B) Magma 
(C) Basalt 
(D) None of the above

Ans

14 Which gas is released in high quantity from
volcano?

(A) Water vapour
(B) Sulphur dioxide
(C) Helium 
(D) Carbon dioxide

Ans

15. Which of the following statement(s) is/are correct regarding Earthquakes?

1. The point where energy is released during an earthquake is called the Hypocentre.
2. All the earthquakes take place in the Asthenosphere. 

Select the correct answer using the codes given below:
Codes:-

( A) 1 only
( B) 2 Only
( C) Both 1 and 2
( D) Neither 1 nor 2

Ans

16.Which of the following may cause  an earthquake?

1. Volcanic eruption
2. Large reservoirs
3. Explosion of Nuclear Device
4 Tsunami waves
5. Mining

Select the correct answer using the codes given below:-

(A) 1, 2, 3 and 5 only
(B) 2 and 4 only
(C) 1, 3, 4 and 5 only
(D) 1, 2, 3 and 4 only

Ans

17. Which waves occur at the time of earthquakes?
(A) B.S.L. 
(B) R.S.L.
(C) A.B.L.
(D) P.S.L

Ans

18. Ring of Fire is associated with:
1. Earthquake
2. Volcano
3. Pacific Ocean
4. Forest Fire

Select the correct answer using the options given below:-
Options:-

(A) 1, 2 and 3
(B) 2 and 4
(C) 2 and 3
(D) 1,2,3 and 4
Ans

19. Tsunamis can be caused by which of the following?

1. Earthquake
2. Landslide
3. Volcanic eruption
4. Meteorites

Select the correct answer using the codes given below:-

(A) 1 only
(C) 3 and 4 only
(B) 1 and 3 only
(D) 1, 2, 3 and 4

Ans

20. Which of the following is characteristic of a Tsunami?
 
(A) Very long wavelength
(B) Very fast moving 
(C) Very low amplitude in the open ocean
(D) All of these

Ans

 Answers
1A, 2C,  3A,  4C,  5B, 6B,  7A, 8D,  9D, 10B, 11C,12A ,13B, 14A, 15A, 16A, 17D, 18A, 19D, 20D                                                                                                                                                                                                                                                                                                                                                                                                                                                
 1. Which of the following evidences were proposed by Alfred Wegener in support of the theory of Continental Drift?

1. Matching of the shorelines of continents.
2. Ancient rocks of Brazil coast matches with those from western Africa.
3. Presence of Tillite and placer deposits across continents.
4. Distribution of fossils.

Select the correct answer using the codes given below:-
(A) 1, 3 and 4 only
(B) 1, 2 and 3 only
(C) 2 and 3 only
(D) 1, 2, 3 and 4

Ans 


2.Which of the following is/are the evidences of sea floor spreading?

1. Volcanic activity along the mid-oceanic ridges.

2. Increasing age of rocks away from the oceanic ridges.

3. Similarities of magnetic properties on either side of oceanic ridges.

Select the correct answer using the codes given below:

(A) 1 and 2 only

(B) 3 only

(C) 2 and 3 only

(D) 1, 2 and 3

Ans


3.Pangaea was divided into Gondwana and Laurasia in

(A) Mesozoic Era

(B) Laurasia

(C) Gondwana

(D) None of these

Ans


4The word 'lithospheric plates' denote their-

(A) Mobile character

(B) Activity

(C) Rigidity

(D) None of these

Ans.


5. The largest of all plates is

(A) Eurasian

(B) North American

( C) Pacific

(D) None of these

Ans


6. The movement of denser plate inwards towards the interior of earth during collision is called

(A) Subduction

(B) Lateral displacement

(C) Cocos plate

(D) None of these

Ans


7. Sea floor spreading results from

(A) Convergence

(B) Lateral displacement

(C) Divergence

(D) None of these

Ans

8. Cocos Plate lies between-

(A) Central America and Pacific Plate

(B) South America and Pacific Plate

(C) Red Sea and Persian Gulf

(D) Asiatic Plate and Pacific Plate

Ans




Answers
1D , 2D, 3A. 4A, 5C, 6A, 7C, 8A

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