11. <span><span>their population crashed.
</span><span>
12. </span></span><span>dead zone
13. I believe </span><span>energy efficient</span>
        
                    
             
        
        
        
Hi buddy, an IT form is for people who are applying at a TECH college.
Love u <3
Hope this helps
 
        
             
        
        
        
Answer:
Hold the CPU fan so that it won't spin and blow this with compressed air.
Explanation:
While cleaning the computer system from the inner side then we have to follow some steps.
- Firstly, shut down the system properly and remove it from the power supply.
 - Then, open the cabinet of the computer system.
 - Then, clean the internal parts of the system through simple air pressure and hold the CPU fan during that time to avoid spinning.
 - Clear the dirt layer using the can of compressed air over the cabinet fans.
 
 
        
             
        
        
        
It Transmits electrical currents. You can use it as an amplifier or switch of currents.