Answer:
They emit steam and volcanic gases, such as sulfur dioxide and carbon dioxide. Fumaroles create pathways for rising heat, volcanic gas, and magma. Openings stemming down into the pool of magma. Cracks and fumaroles act like a window so scientists can get a glimpse of the gases inside volcanoes.
Explanation:
 
        
             
        
        
        
All energy ends up as thermal energy, which is replenished every day by the concentrated energy from the sun.
Hope this helps!
        
             
        
        
        
Contour intervals between contour lines
        
                    
             
        
        
        
Ask the question I brainy.com
        
             
        
        
        
Answer:
The alveolar walls and capillary walls share a membrane. That's how close they're getting. This allows oxygen and carbon dioxide to readily pass from the respiratory system to the circulation. Oxygen molecules bind to red blood cells as they return to the heart.