Answer:
Internet is the correct answer for the above question.
Explanation:
- The Internet Explorer define some security zone (which includes the Restricted sites, internet, Trusted sites, and Local intranet) which is used to block the unwanted sites which can be opened by some other websites. 
- When any user use any website, sometimes that websites open different websites. This security zone gives the features to secure the user from this event.
-  There are four-zone which are described in the first line, in which the internet zone is used to take all the websites which are not defined for the other security zone. It means that when any user does not decide the security zone for any websites then by default it comes in the internet zone.
- This is also asked by the question, Hence "internet" is the correct answer.
 
        
             
        
        
        
In Excel the sum B2 and B6 simply means that B2 and B6 Numbers are adding to get a Sum, it actually like the normal Calculator, but in Excel it helps to do the calculation of your your data simple and easy, there is no hard work.
 
        
             
        
        
        
C)Hydroelectric I believe.
        
             
        
        
        
Answer:
50*8/2
The asterisk is the multiplication sign and the parenthesis is the division.
I've never used an apostrophe for a multiplication sign before, but I'm guessing multiplication is what it stands for.
Explanation:
 
        
             
        
        
        
Explanation:
the objective of ITIL service operations is to make sure that IT services are delivered effectively and efficiently. the service operation life cycle stage includes the fulfilling of user requests, resolving service failure fixing problems and also carrying out routine operational tasks