The smallest lake in africa is Lake Edward
The center of the Earth is made up of two layers, the outer core and the inner core. The outer core is the third layer of the Earth. It is the only liquid layer, and is mainly made up of the metals iron and nickel, as well as small amounts of other substances. The outer core is responsible for Earth's magnetic field.
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Generated by the motion of molten iron in Earth's core, the magnetic field protects our planet from cosmic radiation and from the charged particles emitted by our Sun.
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Maps help local governments become more democratic by giving local governments are more precise spatial knowledge of the regions that they govern.
This also applies for national or federal governments. Maps are an increasingly important source of information for government at all levels, because they are a great tool to place all kinds of information about a region: demographic information, economic information, physical geography information, and so on.
