Answer:
I am what brings things together. Without me everything you see would be a total mass or debris everywhere. What am I?
I plow and plow but never sow.
People need me yet they give me away every day.
I have a lot to say but can't be heard because I can't speak one single word. What am I?
The last man on Earth received a phone call, who was the caller?
What never gets any wetter no matter how hard it rains?