Earthquakes and volcanoes are caused by- *
1.internal disturbance
2.external disturbance
3.over-population
4.gradation
Answers
Answered by
3
Answer:
Earthquakes are usually caused when rock underground suddenly breaks along a fault. This sudden release of energy causes the seismic waves that make the ground shake. When two blocks of rock or two plates are rubbing against each other, they stick a little.
Answered by
6
Answer:
1.internal disturbance
Explanation:
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