Magma. Magma can be made of many different materials, and once it breaches the earth surface it is called lava. Lava is what comes out of volcanoes, magma is what is still underground
        
                    
             
        
        
        
Differences between the Troposphere and the Stratosphere:
The troposphere is the lowest level of the atmosphere, so it is in contact with the Earth’s surface. In contrast, the stratosphere is located above the troposphere, so it is not in contact with the Earth’s surface.  Humans live in the troposphere, not the stratosphere. People only spend time in the stratosphere is when they are traveling through it on an airplane, or flying through it while riding in a rocket.  The air density and air pressure are much lower in the stratosphere. In fact, stratospheric air is too thin for people to be able to survive without pressurized air to breathe.
 
        
             
        
        
        
The physical map shows the landforms and bodies of water in specific areas on Earth's surface, the political map hows features humans have created such as the boundaries between states, provinces, territories, and countries. The topographic map shows land elevations. However all of them represent Earth's surface on different way. 
 
        
                    
             
        
        
        
The Northern European plain and lowlands of West Siberian Plains have a lot of differences in terms of their characteristics. The only similarity between the two would be the vast complex land that both of these lands have. 
I hope this answered your question.
        
                    
             
        
        
        
Located almost due east of the Reflecting Pool and the Lincoln Memorial, the monument, made of marble, granite, and bluestone gneiss, is both the world's tallest stone structure and the world's tallest obelisk, standing 554 feet 7 11⁄32 inches (169.046 m) tall according to the National Geodetic Survey