Geothermal activity visible on the surface,acute to extreme seismographic readings. typically on the borders of tectonics plates. (Ring of fire)
        
             
        
        
        
Animals ingest food containing carbon sources such as carbohydrates, proteins and lipids. (Which they get from plants that have absorbed and converted the carbon dioxide into other energies). They then metabolise these substances to produce waste products. One of these waste products is carbon dioxide which they breathe into the atmosphere. Also animals faeces is broken down by bacteria which give off carbon dioxide as they do so.
        
             
        
        
        
I believe they are both located near active volcanos :)
        
             
        
        
        
(4) Biotite and amphibole were two minerals, not shown on the Graph of Changes in Mineral Composition Within the Palisades Sill, that are also likely to be found in some other samples of diabase.