Answer:
megapixel refers to the unit of resolution i.e. one million
Explanation:
Interestingly the higher the pixels does not mean higher quality of image, it's more about the camera and it's sensor.
I am a photographer and a licensed drone pilot and have researched the subject to help with camera choice, both DSLR and drone.
You click on the three dots and click the person silhouette with the plus sign on it.
It is Letter G
Explanation: Took Guitar classes as a kid and memorized the letters.
This question is a bit ambiguous as there were a few features that were added and any could be perceived as distinguishing depending on what you look for in your OS. I do believe this is in reference to the Wikipedia article on Windows 2.0 though as the first two listed features make note of Windows 1.0 specifically, therefore:
Windows 2.0 allowed windows to overlap, Windows 1.0 could not do this.
Windows 2.0 introduced new and more complex keyboard shortcuts and terminology such as "Minimize" and "Maximize" vs. Window 1.0's "Iconize" and "Zoom"
Source: https://en.m.wikipedia.org/wiki/Windows_2.0