Which one of the following is likely to cause tsunami?1. Lightning2. W

1.	Which one of the following is likely to cause tsunami?1. Lightning2. Wind3. Under water earthquakes4. Snow5. None of the above/More than one of the above
Answer» Correct Answer - Option 3 : Under water earthquakes The Correct Answer is Underwater earthquakes. Tsunami's can occur when the seafloor suddenly deforms and displaces the overlying water vertically. Tectonic earthquakes are a special type of earthquake associated with earth's crustal deformation; when these earthquakes occur under the sea, the water above the deformed region is shifted from its equilibrium location. Waves are shaped as a displaced mass of water, which works under the influence of gravity, attempting to restore its balance. When wide areas of the seafloor rise or fall, a tsunami can be formed. Large vertical motions of the crust of the earth may occur at the boundary of the plate. Plates communicate along the borders that are called faults. Around the Pacific Ocean, for example, denser oceanic plates slide under continental plates in a mechanism known as subduction. Subduction earthquakes are especially successful in the generation of tsunamis.

Which one of the following is likely to cause tsunami?1. Lightning2. Wind3. Under water earthquakes4. Snow5. None of the above/More than one of the above

Answer» Correct Answer - Option 3 : Under water earthquakes

The Correct Answer is Underwater earthquakes.

Tsunami's can occur when the seafloor suddenly deforms and displaces the overlying water vertically.
Tectonic earthquakes are a special type of earthquake associated with earth's crustal deformation; when these earthquakes occur under the sea, the water above the deformed region is shifted from its equilibrium location.
Waves are shaped as a displaced mass of water, which works under the influence of gravity, attempting to restore its balance.
When wide areas of the seafloor rise or fall, a tsunami can be formed. Large vertical motions of the crust of the earth may occur at the boundary of the plate.
Plates communicate along the borders that are called faults. Around the Pacific Ocean, for example, denser oceanic plates slide under continental plates in a mechanism known as subduction.
Subduction earthquakes are especially successful in the generation of tsunamis.