Answer:
<u>Olivines an Pyroxene, and 5 to 10% of calcium oxides and aluminium oxides</u>.
Explanation:
- The upper mantle of the earth begins just 10 kilometers below the surface of the lithosphere and under the ocean about 35 km and ends to the lower mantel at 670 km.
- Here the temperature range from 200 to 900 degrees celsius, at the boundary is composed of 55% of olivines and 35% of pyroxenes, minerals such as garnet and spinal are also found.
- Lehmann discontinuity is which is an abrupt change caused by the p and s waves occurs at the depth of 220 km. In the upper mantel and lower crust, there exists a discontinuity called the Gutenberg discontinuity.
- Mantel forms the rigid liquid sphere on which the slabs move.
Answer:
Before the arrival of the Europeans to America, there were advanced civilizations in America, therefore, without the Europeans, I think these civilizations would have continued to develop, mainly the Aztec and Inca civilizations. Also, other civilizations would have grown. And a political-economic system similar to feudalism may have developed.
The population in America would also be larger and more interconnected. Also, the civilizations would have been developed more scientifically.
Europe, meanwhile, would have faced an economic crisis. Before the conquest of America, Europe was experiencing a great recession. Quite possibly this recession would have deepened.
Also, they would have faced a great famine; due to the exchange of products between America and Europe, the Europeans had more food options, for example, the potato.
Likewise, if Europeans had not reached America, other parts of the world would possibly have another history as well, such as Africa and Oceania, and even Asia.
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<em>I hope this information can help you.</em>
Answer:
Here you go mam I think this is correct
Explanation:
Another half a million employees resident in Greater London work in manufacturing and construction.
Business districts.
Domestic and international corporate headquarters.
Financial services.
Professional services.
Media.
Tourism.
Technology.
Retail.
Answer:
State Governor
Andhra Pradesh Shri Biswa Bhusan Harichandan
Arunachal Pradesh Brig. (Dr.) B. D. Mishra (Retd.)
Assam Prof. Jagdish Mukhi
Bihar Shri Phagu
