Answer:
I had a bright start but I couldn't take the pressure. I consume everything yet I don't eat anything.
I start with āeā end with āeā. I have whole countries inside me. What am I?
I pass before the sun, yet make no shadow. I'm all around you, but you cannot see me. What am I?
I move without wings between silken strings. I leave as you find my substance behind
I am pronounced as one letter, written with three. I come in blue, black, brown, or grey. Reverse me and I read the same either way. What am I?
Black we are and much admired. Many seek us if they are tired. We tire the horse, and comfort man, and turn White when we've fulfilled your plan.