Contour lines determine the steepness of the land by how close they are together. Generally, contour lines rise to a particular scale (e.g. a line for every ten metres), therefore, if the contour lines are closer together then the height of that particular area has risen more steeply than if the contour lines are further apart where the steepness has increased more gradually.
        
             
        
        
        
16TH PRESIDENT ABRAHAM LINCOLN
        
             
        
        
        
the first one is Equator and the second one is tundra should be the right answer sorry if it's wrong 
 
        
             
        
        
        
Answer:
Pollution
Explanation:
Because the atmosphere depends on trees to keep the Oxygen levels to average. Brainliest please!
 
        
                    
             
        
        
        
Answer:  
Explanation:in the metamorphic process due to the impact of pressure and the collection of many types of crystallization, metamorphic rocks are usually more solid than sedimentary rocks; but metamorphic rock from igneous rock, due to its schist structure, its mechanical properties are inferior to igneous rock