The is a layer of liquid nickel and iron believed to be responsible for generating the earth's magnetic field.

What are the differences between differing map projections ?

Crisis in rivalries between the serbs, croatians and muslims has been going on for centuries and only intensified during the 1990s when non-communist rulers were elected

Where was oil production at its highest in the 1980s and still remains important to the russian economy? central asia the ural mountains russian siberia the caucasus region