An earth quake is as a result of vibrations travelling within the earth crust . Its a form of natural disaster. It usually results into the loss of lives and properties. disruption of mother nature
A seismograph is an instrument for detecting & measuring earthquakes
three number of seismograph stations are necessary to determine the location of an earthquake's epicenter
If points E and D are midpoints of triangle ABC, then the perimeter of the triangle is:AB + BC + CA = 48, or: 3 t + 3 t + 4 t + 4 t + 7 t + 6 = 4821 t = 48 - 621 t = 42t = 42 : 21t = 2Answer: A. 2.