Answer:
Explanation:
 No because it will expire
 
        
             
        
        
        
Semiconductor materials are ostensibly little band hole encasings. The characterizing property of a semiconductor material with pollutions that adjust its electronic properties controllably. Most ordinarily utilized semiconductor materials are crystalline inorganic solids.
        
             
        
        
        
Answer:
Crabs, lobster, shrimp, etc.
Explanation:
 
        
             
        
        
        
The combined mass of rock 1 and 2 = 19.28 + 25.3
= 44.58
Difference between rock 3 and combined rocks 
= 46.3 - 44.58
= 1.72 grams
therefore, the third rock was 1.72 grams greater than the combined mass of the other two rocks. 
        
             
        
        
        
Answer:
You multiply 0.5 by 20 which will give you 10 your answer is 10