the solute is the one that dissolves meaning its particles are separating into the solvent, and the solvent is the one that dissolves the other substance.
 
        
             
        
        
        
Answer 
Sounds travel slowest in gasses so it would be air
 
        
                    
             
        
        
        
It’s B 
Because that is the smallest way scientists divide plants your welcome
        
             
        
        
        
Answer:
the volume will increase 
Explanation:
The kinetic energy of gas molecules depend upon the temperature . If temperature is increased , the molecules will move faster . When temperature is decreased , they move slower . 
Hence when more molecules are added to a gas without changing its temperature , the velocity of gas molecules will remain unchanged .
Since pressure  is also constant , it is volume which will be increased .
 It can be explained from universal gas formula as follows 
PV = nRT 
P , R and T is constant ,
V ∝ n 
Volume is proportional to n which depends upon number of molecules . 
So volume will increase if number of molecules increases .