Until the early Proterozic there were only negligible amounts of free oxygen in the atmosphere
When tectonic plates move or when they rubbed with each other earthquake happens
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Answer:</h2>
The political problems of the post-colonial period included <u>A) ethnic conflict, B) human rights, and C) political capacity</u>.
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Explanation:</h2>
Many countries that were colonies still face challenges post-colonial era. Economic challenges and poverty are at the forefront of countries that were French colonies. Ethnic conflict is another problem faced by former European colonies in African countries and it is believed that colonizers gave rise to this problem during their reign.
Tactics such as divide and conquer were used against the natives by colonizers and they also set boundaries without considering the distribution of different cultural groups. Decolonization was not able to accommodate most of the ethnic groups living within the boundaries set by colonizers. These resulted in political corruptions, human rights violations, and disrespecting the law.
How does the Earth create a magnetic field?
The Earth’s magnetic field is created by the rotation of the Earth and Earth's core. It shields the Earth against harmful particles in space. The field is unstable and has changed often in the history of the Earth.
