Answer:
When I point up, it's bright. When I point down, it's dark. What am I?
What can fill a room but takes up no space?
I am the word that has three syllables and twenty six letters.
I wear a green jacket on the outside white jacket as a second layer and red jacket inside. I am pregnant with a lot of babies. (one word)
A trail, a union, together tied. Come across me and you will find you cannot change the course I'm on. Without me you cannot travel on. What am I?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.