The "middle ages" are anything between the collapse of Rome (400 AD) to its re-emergence in Rennaissance Italy (1400). Rennaissance means "rebirth". The "dark ages" are the period in the middle ages which were relatively undocumented. This would definitely include 400 AD to 700 AD, and some extend it to 900 AD.
        
             
        
        
        
Wigga woggga wigggawiggva
        
             
        
        
        
Answer:
The features that required to protect the privacy should be:
- Protection of User name and Password
 - Protection of Finger print and other bio metric information if collected from user.
 - Protection of Personnel Information such as contact information, Identity information if collected. 
 - Protection of data shared such as pictures and videos.
 
Explanation:
Privacy protection is required to different websites that are involved in collection of different information from users such as user name, password, contact information, account information and messengers. These websites could be website of some bank, online mailing platforms, online shopping platform and social media platforms. These all are used to share and gather our personnel information for different purposes. To ensure the protection of user data they signed a document with users at the time of making account.
The above mentioned are the features that should be included in privacy protection of the website. As all mentioned features are personnel for every user and should be protected from hackers.
 
        
             
        
        
        
Answer:
The ledgers are secure, shared, and incorruptible is the correct answer. 
 
        
             
        
        
        
Answer & Explanation:
The formula in the cell B7 would be:
"=B5-B6"
And now we will press "Ctrl+C" to copy the formula in the Cell B7. After copying we will select the cell range C7 to D7 and press "Ctrl+V" to paste this formula in the cell C7:D7 and then will press Enter key. Now what we see is results in C7:D7 which we can check in our calculator whether these are corectly calculated or not.