NEET BIOLOGY

ECOLOGY

ENVIRONMENTAL ISSUES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What causes tsunamis?
A
underwater earthquakes
B
climate change
C
air pollution
D
deforestation
Explanation: 

Detailed explanation-1: -When a great earthquake ruptures, the faulting can cause vertical slip that is large enough to disturb the overlying ocean, thus generating a tsunami that will travel outwards in all directions.

Detailed explanation-2: -Tsunamis are ocean waves triggered by:Large earthquakes that occur near or under the oceanVolcanic eruptionsSubmarine landslidesOnshore landslides in which large volumes of debris fall into the water Scientists do not use the term “tidal wave” because these waves are not caused by tides.

Detailed explanation-3: -A continental plate is dragged down and bent by an oceanic plate. The continental plate cannot bend any more and snaps back, pushing the seawater up. The seawater spreads in all directions as a tsunami and reaches land, sometimes hours later.

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