Question

1.

It is important to make sure there are no echoes or background noises in the room.
Pay attention to your surroundings.

2.
It is important to eliminate any unwanted motions or unwanted noises associates with motion.
Wear headphones when listening to your recording.

3.
It is important not to be distracted by background noise or confuse it with background noise from your recording.
Use a tripod or table microphone.

Answer 1

1. I believe it this, they way the question is phrased it seems like a personal opinion. But if we're being logical about this, no one likes background noise. So,yes, it's important.
2. Yes, when you record something you don't want additional sound that has nothing to do with what you're recording.
3.Yes, your main task is to be focused on what you're doing on the computer. You don't want to be distracted by unnecessary distractions.