Answer:
Surface waves have a longer duration and higher amplitude than body waves.
Explanation:
The stark difference between an earthquake body and surface waves is such that they have longer duration and a higher amplitude compared to body waves.
There are two categories of seismic waves that usually accompanies an earthquake:
- body waves are faster and perpetuate in the subsurface. They reach the seismic station first and are discovered faster.
- surface waves arrives later and they cause the damage produced by most earthquake waves. They perpetuate on the surface.
- surface waves are the love and Rayleigh waves
- body waves are the primary and secondary waves.
Answer: Most submarines use sonar as a navigation aid. How would sonar enable an underwater vessel to move through the ocean depths? It would enable an underwater vessel to move through the ocean depths because it would tell the navigator how far away they are from the bottom, and if they are too close or too far.
Oceanographers study the ocean through sonar and submersibles. Oceanographers use sound waves(sonar) to find the location of objects or to communicate. The sound waves travel to the ocean floor then back, and oceanographers count how long it takes to find how deep the ocean is at that location. Oceanographers use that to make maps and profiles of the ocean floor. Oceanographers use submersibles to study the ocean depths. Submersibles help oceanographers make discoveries about the deep ocean.
Explanation:
Debido a su gran tamaño y sus características geográficas, en algunas culturas, América se divide tradicionalmente en América del Norte, América Central, y América del Sur. Algunos geógrafos consideran a América Central como una subregión dentro de América del Norte
Answer:
384,400 km
Radius: 1,737
After World War II, The United States got heavily involved in the Middle East, mostly because of its political and economic interests.
Explanation:
After the World War ended, the Middle East was a region that just got its freedom after a very long time. The young states had lot of problems, and there was big interests from the global superpowers for controlling them because they lied on enormous reserves of oil.
The United States rushed to make good relations and if possible to control some of the countries. There was enormous competition for the region though, especially from the Soviet Union. The United States invested heavily, and put in a lot of effort to secure the region for themselves, and i part managed to.
The long term benefits of this have been huge for the United States. Also, whenever there was someone in the region that was threatening their interests, the United States didn't hesitated to use their military power and put things under their control.
Some of military interventions by the United States in this region were:
- the Gulf War
- Iraq war
- Afghanistan war
- Syria war
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