<span>Earthquake waves that vibrate from side to side and up and down only through solids are known as secondary waves, or simply S-waves. As you can see in the question, they pass through solids - to be more precise, they flow through rocks and cause them to change their shape. They are quite strong, but not as strong as primary waves, as they cannot pass through liquids or gases. </span>
It’s true By the end of the 19th century, the Western powers and Japan had forced China’s ruling Qing dynasty to accept wide foreign control over the country’s economic affairs. In the Opium Wars (1839-42, 1856-60), popular rebellions and the Sino-Japanese War (1894-95), China had fought to resist the foreigners, but it lacked a modernized military and suffered millions of casualties.
Two plates that are made up mostly of oceanic crust are the Pacific plate and the Nazca plate.
Explanation:
There are numerous tectonic plates that divide the surface of Earth, and they can be divided into oceanic plates and continental plates. Another division commonly used is major plates. minor plates, and micro plates. The oceanic plates are plates that are mostly made up of oceanic crust, and the land masses on them are consisted of island arcs, mostly of volcanic origin. Some of the oceanic plates are:
- Pacific plate
- Nazca plate
- Cocos plate
- Caribbean plate
- Scotia plate
The Pacific plate is the largest oceanic plate, and it is a major plate. It is dominated by ocean, with numerous island chains scattered across it. This plate is shrinking from all sides as it has subduction zones with all of the continental plates that surround it. The Nazca plate is another oceanic plate, being located between the South American and Pacific plates. It is a minor plate, and it has a subduction zone with the South American plate, which has resulted in the formation of the Andean Mountain Range.
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<span>The ecological pyramid is the smallest at the top beacuse there is ten percent loss of energy, in the form of food, at each trophic level, and the number of organisms of the top most level are the fewest. </span>
