The Richter scale is used, from 0.1 to 9.0 magnitude. The Richter scale is determined from the logarithm of the amplitude of waves recorded by seismographs.
<h2>12km</h2>
<em><u>Explanation:</u></em>
1 cm = 4 km
3 cm = 4×3 km
= 12 km
<h2>follow me</h2>
An accurate description of the physical characteristics of Poland is mainly flat landscape, fertile soil except in the east and northeast, many lakes, large deposits of coal, sulfur, and copper, a mountainous region in the south. <span>Coal is Poland's most important mineral resource.</span>
Bankers , merchants, and government builders in Rome belonged to the equestrian class.
<em><u>Venezuela is the major producer for oil.</u></em>
Just in case you need to know how much they produced.
In 2006 they produced- 2,511 of oil.
In 2007 they produced- 2,433
In 2008 - 2,394
In 2009- 2,239
In 2010- 2,146
In 2011- 2,240
