Answer:
What is shaped like a box, has no feet, and runs up and down?
I am a path between high natural masses; remove the first letter to get a path between man-made masses.
First you see me in the grass dressed in yellow gay; next I am in dainty white, then I fly away. What am I?
Soft hairy from door to door. I am the pet that always stays on the floor.
I am known for my natural tuxedo and marching. What am I?
Give it food and it will live, give it water and it will die.