You have to ask you teacher to show you which ones you got wrong and the answers to them.
Answer:
for better future and attractive human life
Answer: A. Usability testing
Explanation:
Usability testing would be the correct answer because if the user interface isn't "frendly" then people won't be able to use it properly. Or if you are refering to the word friendly as looking safe, then even more so would be usability testing. Because if people don't like the fonts and styles of the user interface, they might not use it at all.
Mood
Explanation:
Because it gets changed by the time you are happy or sad. Same that while you are reading if you like your. mood gets good but if you dont find this ans satisfied your mood gets changed.
Answer:
Technology > Network report. All traffic > Source/Medium report.
Explanation:
hope this helps