"You mean, by using green plants to give off oxygen?"

And I'm to get more green plants inside the house.

The green plant can also be used in part as cattle feed.

All green plants must grow toward the light if they are to make use of its energy.

You will read about it there, but most of the air has something to do with green plants.

There were a great many plants, fresh and green from recent watering.

I still can't understand how a fire started among green plants.

The green plants are food for other living chemical systems.

Light in some form is absolutely essential for the healthy development of green plants.

By the time they are ready to go into the ground, the green plants should be about six to eight inches tall.