Thee true statement is that Earthquake magnitude is based on ground motion recorded by a seismograph; intensity is based on the amount of damage produced.
<h3>How is the magnitude of an earthquake known by a seismograph?</h3>
The Richter magnitude of an earthquake is known to be seen through the use of the logarithm of the amplitude of waves as recorded by a seismographs.
The different Adjustments rates are included for the variation that exist between the distance from various seismographs and the epicenter of the earthquakes.
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Japanese leaders and Japanese people generally are well aware of their nation’s demographic challenges. The population has begun to decline and the proportion of people of working age continues to decrease. The birthrate is well below replacement level. Japanese people are aging fast while life expectancy continues to increase. The implications for the Japanese economy and for Japan’s position in the world should be obvious.
Because there is more friction, heat, and weight the further you go down.
Answer:
They are named for the places where geologists first described rocks or fossils from that time.
Explanation:
The geological history of planet Earth is divided into multiple eras and periods. The divisions are based on some dramatic event that caused a significant change in a short period of time, thus creating an easy distinction between them. The purpose of the divisions is to be easier for the scientists to explore the past, to find it easier to describe fossils, rock strata, events, etc.
The names of the eras and periods of the geological time scale seem to be names that are familiar, at least to people in some regions, with slight changes at the end of the names. This is because the names of the eras and periods tend to be given by the places where geologists first described rocks or fossils from that time. As an example, we can take the Jurassic (named after the Jura Mountains), Devonian (named after the Devon), Cambrian (named after Cambria, which is the Latin name for Wales), etc.
