Answer:
is a service under the All India Services. ... Along with the Indian Administrative Service (IAS) and the Indian Forest Service (IFS), the IPS is one of the All India Services — its officers can be employed by both the Union Government and the individual states.
The answer is: the 1906 San Francisco earthquake.
From an examination of the displacement of the ground surface which accompanied the 1906 earthquake, Henry Fielding Reid, Professor of Geology at Johns Hopkins University, concluded that the earthquake must have involved an "elastic rebound" of previously stored elastic stress.
The elastic rebound theory is an explanation for how energy is spread during earthquakes. As rocks on opposite sides of a fault are subjected to force and shift, they accumulate energy and slowly deform until their internal strength is exceeded.
The barrier that holds back water from a river is a dam
Generally, prevailing winds blow east-west rather than north-south. This happens because Earth's rotation generates what is known as the Coriolis effect. The Coriolis effect makes wind systems twist counter-clockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere.