Answer:
negative
Explanation:
positive charges attract negative charges and vice versa. and are possible to nullify
 
        
             
        
        
        
Option A overweight
HOPE IT HELPS!!
        
                    
             
        
        
        
|Acceleration| = (change in speed) / (time for the change).
Change in speed = (6 mi/hr - 25 mi/hr) = -19 mi/hr
Time for the change = 10 sec
|Acceleration| = (-19 mi/hr) / (10 sec) = -1.9 mile per hour per second
Admittedly, that's a rather weird unit.
Other units, perhaps more comfortable ones, are:
                 -6,840 mi/hr²
                   -2.79 feet/sec²
        
             
        
        
        
Speed is the rate of change <span>of distance.</span>
        
                    
             
        
        
        
Biological control<span> is a </span>bioeffector<span>-method of </span>controlling pests<span> such as </span>insects<span>, </span>mites<span>, </span>weeds<span> and </span>plant diseases, using other living organisms.
<span>Biological pest control relies on</span> natural mechanisms including predation, parasitism, or herbivory<span>, </span>but typically also involves an active human management role.