A spacecraft virus<span> is a type of bacteria virus that feeds on other bacteria. It got it name because it is mostly shaped like a spacecraft.</span>
        
                    
             
        
        
        
Answer:
b. speed up chemical reactions.
Explanation:
brainly plz
 
        
             
        
        
        
Some sort of security  pole to hold the 2 ends together firmly <span />
        
                    
             
        
        
        
Answer:
C. Lead embedded in the glass of the monitor.
Explanation:
Cathode Ray Tube (CRT) monitors have lead embedded in their glass. Exposure to small quantities of lead can lead to lead poisoning. There are about 2.2 kilograms of lead in a big CRT monitor. 
This amount of lead is mixed with the glass to improve the optical quality and to stop radiation from affecting the user.
Exposure to lead can cause the following:
- Constipation.
- Irritability,
- Headaches
- Aggressive behavior and so much more.