it's important because if your question is understanding it makes who ever you talking to come up with a easy answer where he doesn't have to come up with a stupid answer or lie just to get you out of his face the easier your question is the better answer you might get.

if u understand your task things seem easier and less complicated and you get your work done faster at a better pace.

less happiness internet like another friend like a friend with cyber power that give  you choice to see anything. Life without internet would be very bored, not for everybody because not everybody use internet. Some people live perfectly fine without it, but for me life will be a little bit more bored. And internet not everything.