brain or nervous system cells are called as neurons
 
        
             
        
        
        
<span>Carbon is most abundant in the atmosphere and hydrosphere.</span>
        
                    
             
        
        
        
Answer:
A and B
Explanation:
the main factors that result in violent volcanic eruption is low viscosity and gas content
 
        
             
        
        
        
<span>After the stove is turned off, convection currents continue to transfer energy through the water for a period of time</span>