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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The earth tilts for different times of the year. During the summer Alaska is a lot closer to the sun than florida.
The correct answers are:
- half;
- 415;
South America is a continent that has a steady rise in its population. It has around 415 million people and if the trend of rise continues, very quickly the continent will reach the mark of half a billion people.
The biggest, and also the most populous country in South America is Brazil. Brazil has an estimated population of around 209 million people, and it is growing population. Brazil's population accounts for approximately half of the population on the continent.
Answer:The Arctic Circle is one of the two polar circles and the most northerly of the five major circles of latitude as shown on maps of Eart
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