Bacteria in soil convert atmospheric nitrogen into a form usable by plants.
Many orchids are rewarding indoor plants.
Bacteria in soil converts atmospheric nitrogen into a form usable by orchids.
bacteria in soil converts atmospheric nitrogen into a form usable by what?

[A] bacteria
[B] humans
[C] density
[D] Conifers
[E] Roundworms
[F] gravity
[G] h2o
[H] orchids