1. Tsunamis are originated due to

2. Which of the following is/are the correct characteristic(s) of primary seismic wave?

3. The place of origin of an earthquake is called

4. Assertion (A) : The outer core of the earth’s interior is in molten state while the inner core is in solid state. Reason (R) : The P-seismic waves disappear in outer core while S-waves penetrate up to the inner core. Codes

5. Moho discontinuity lies at the depth of approximately

6. The number indicating the intensity of an earthquake on a Richter scale range between

7. Assertion (A) : Basalt is a fine grained and dark coloured igneous rock which is formed below the earth’s surface. Reason (R) : The rate of cooling and solidification of magma inside the earth is very slow. Codes

8. Which one of the following best describes the world distribution of active and recently active volcanoes?

9. Which of the following features is not an aspect of vulcanicity?

10. The famous ‘Ring of fire’ which account for 68% of an earthquake occurring in the earth is in the

11. Which of the following is a volcanic plateau?

12. Krakatau, the most famous volcano of Indonesia, is located between

13. Tectonic activity

14. The most abundant gas emitted from volcanoes is

15. Ema is an example of

16. Seisnology is the special branch of

17. Consider the following statements regarding the earthquakes:
1. The intensity of earthquake is measured on Mercalli scale.
2. The magnitude of an earthquake is a measure of energy released.
3. Earthquakes, magnitudes are based on direct measurement of amplitudes of seismic waves.
4. In the Richter scale, each hole number demonstrates a hundred fold increase in the amount of energy released. Which of there statements are correct?

18. Match List-I (Geological Era) with List-II (Geological Period) and select the correct answer using the codes given below the lists: List-I List-II
A. Mesozoic 1. Tertiary
B. Proterozoic 2. Triassic
C. Cainozoic 3. Pre-Cambrian
D. Palaeozoic 4. Permian Codes A B C D

19. The earthquake at Sagami bay in Japan which killed two and a half lakh people was an example of

20. Epicentre is concerned with

21. Which one of the following types of volcanic eruptions is not usually explosive?

22. Earthquake is caused by

23. Which of the following statements are true?
1. Moderate earthquake are caused along constructive plate boundaries.
2. Low magnitude earthquakes are caused along conservative plate boundaries.
3. Disastrous earthquakes are caused along destructive plate boundaries.
4. Severe earthquakes are caused along the conservative plate boundaries with the creation of transform faults. Select the correct answer using the codes given below:

24. Consider the following statements regarding earthquakes:
1. In earthquakes, shocks are generated at a point known as the epicentre.
2. The point of origin of shock may be within the crust or mantle.
3. The more earthquake prone areas are at the merging of tectonic plates. Which of the above statements are correct?

25. ‘A valley of ten thousand smokes’ is the name given to a zone near the volcano