Author is related to Book in the same way as Choreographer is related to..........?

Choose the correct alternative for the given relation.

Planet : Orbit : : Projectile : ?

Door is related to Bang in the same way as Chain is related to..........?

Choose the correct alternative for the given relation.

House : Garbage : : Ore : ? 

Ecology is related to Environment in the same way as Histology is related to........?

Choose the correct alternative for the given relation.

Paper : Ream