Answer:
At the bottom of a question there is a bell
Explanation:
If it is colored gray (I don't know if it is grey or gray) and has a checkmark in it, then you are following.
Click the bell to unfollow
If you had answered a question on a post then you cannot unfollow
The progression from wayfarers to spacefarers demonstrate that people have advanced to the point where not only do we travel on foot but Astronauts and Cosmonauts are able to travel in space. This shows how technology has improved.
Usually, I only take notes on key points and definitions.
When studying for a test, I give myself two notecards, and I reread everything throughout the section. The notecards are small enough that they force you to only take notes on the most important sections, and often times, those are the things that come in tests :)