Arock that forms when magma hardens beneath earth's surface is called a(n)

On the map below, which of the following rivers is identified by blue? the huang he river the yangtze river the han river the naktong river

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

In a class of 20 students, what democratic form of governance makes the most sense