It is false.
Explanation:
Colloids include gels, sols, and emulsions; the particles do not settle, and cannot be separated out by ordinary filtering or centrifuging like those in a suspension.
 
        
             
        
        
        
I belive this is repair and maintenance.
hope this helps!
        
             
        
        
        
B. The oldest crust is closest to the mid-ocean ridge.
        
                    
             
        
        
        
Explanation:
here is your answer hopes it's helps u
 
        
             
        
        
        
B 
water is a miscible liquid which mean other liquid can dissolve in it.Also aqueous solution can dissolve in it.