The seismic dampers are mechanical devices that have the purpose to dissipate the kinetic energy from the seismic waves that are penetrating the structure of a building.
They are very import since they started to be used because they are able to minimize the damage to the buildings and avoid their destruction to a certain degree, depending of course on the strength of the seismic waves.
Before they were used, an earthquake that was not very strong was able to make huge damage on the buildings, and very often to totally destroy them. Since the introduction of the seismic dampers though, the buildings are able to withstand much bigger earthquakes without being damaged, which saves millions of lives every year, and also a lot of material damage is avoided.
As the land surface heats up in summer, it generates a thermal low pressure. Air from the relatively high-pressure region over the ocean blows into this thermal low. This is called the <u>monsoon.</u>
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<h3><u>A Monsoon: What Is It?</u></h3>
A monsoon is a change in wind patterns that frequently results in either a very wet or a very dry season. Although monsoons are typically associated with sections of Asia, they can occur in many tropical and subtropical climates, including numerous locations in the United States.
<u>What triggers a monsoon?</u>
A seasonal change in the winds is what triggers a monsoon. The seasonal differences in land and water temperatures cause the winds to fluctuate. For instance, the ground warms up more quickly than bodies of water at the start of summer. The direction of the monsoon winds is always from chilly to warm. In the summer, conditions arise that cause the wind to blow in the opposite direction.
Learn more about monsoons with the help of the given link:
brainly.com/question/28062860
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B) Berlin Airlift
It normally means it is a city capital. There is normally a legend that will tell you what the symbols mean
