The mapping of which of the following is the most difficult?

March 23, 2011 by  
Filed under Geography

The mapping of Interior of earth is the most difficult. The interior structure of the Earth, similar to the outer, is layered. These layers can be defined by either their chemical or their rheological properties. The Earth has an outer silicate solid crust, a highly viscous mantle, a liquid outer core that is much less […]

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