Advertisements
Advertisements
प्रश्न
Distinguish between primary waves and secondary waves.
Advertisements
उत्तर
| S. No. | Primary waves | Secondary waves |
| (i) | These waves are the fastest of all the earthquake waves and the first to reach the epicentre. | Secondary waves travel less faster than the primary waves. |
| (ii) | These waves pass through solids, liquids and gases. | These waves travel only through solids. |
| (iii) | The average velocity of these waves is 5.3 k.m/sec to 10.6 k.m/second. | The average velocity of these waves is 1 k.m/sec to 8 k.m/second. |
संबंधित प्रश्न
The movement of plates that creates stress and tension in the rocks causing them to stretch and cracks result in ______.
Write about the Pacific Ring of fire.
Mention its types of seismic waves.
The collision with the Eurasian Plate along the boundary between India and Nepal formed ______ Plateau.
______ this is a dead volcano
Match the following:
| (a) | Active Volcano | (i) | Mt. Kilimanjaro |
| (b) | Dormant Volcano | (ii) | Strata Volcano |
| (c) | Extinct Volcano | (iii) | Mt. St. Helens |
| (d) | Composite Volcano | (iv) | Mt. Fuji |
| (e) | Shield Volcano | (v) | Mauma loa |
Consider the given statement:
Statement I: Volcanoes can also be classified based on the periodicity of eruptions, as Active volcano, Dormant volcano, and Extinct volcano.
Statement II: A lava dome is roughly a circular mound formed due to the slow ejection of viscous lava from a volcano.
Which of the following statements(s) is/are true?
What is a subduction zone?
Give reason for the following:
A lava dome does not flow from into the vent.
What is the difference between the ‘magnitude’ and the ‘intensity’ of an earthquake?
