Answer:
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.
Never alive but practically extinct. How we miss the letters pressing the ribbon of ink. What is it?
Green arrows grow out of my sides. I go from yellow to white. My babies fly in the wind. What am I?
It's got twists and turns, but has no curves. Twist it to fix it, turn it to ruin it. What is it?
What two things can always see what the other sees, but can never see each other?
People take me on walks and I run and have fun. What am I?