Answer:
The earthquakes of California are caused by the movement of huge blocks of the earth's crust- the Pacific and North American plates. The Pacific plate is moving northwest, scraping horizontally past North America at a rate of about 50 millimeters (2 inches) per year.
Explanation:
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Answer:
HDI: Sub-Saharan Africa.
Life expectancy: Sub-Saharan Africa.
Enrollment ratio: Sub-Saharan Africa.
GDP per capita: Sub-Saharan Africa.
Explanation:
Sub-Saharan Africa is the most underdeveloped part of the planet, but it is also one of the most populous. This situation creates serious challenges for the weak and often irresponsible governments of the region and makes development difficult.
The region performs poorly in virtually every area measured by the Human Development Index. Although there has been much progress in recent years, the economic development that has started to improve living conditions in Sub-Saharan Africa has been extremely unequal and not benefited all countries.
Answer:
These rocks were part of the oceanic trench.
Explanation:
- The Vishnu schist is a part of the Vishu complex of exposed basement rocks and is originally part of the deep ocean trench and was substantially overloaded by the sediments of the Brahma schist some 1.75 billion years ago.
- Being metamorphic in nature the oldest rocks of the canyon have granite and suggest they have been subjected to intense heat and pressure.