Planting|verb|Putting seeds or young plants in the ground to grow.
Environment|noun|The natural world, including the land, water, air, plants, and animals.
Trees|noun|Large plants with a single, strong trunk that supports branches and leaves.
Oxygen|noun|A colorless, odorless gas that is needed for most animals to live. Trees produce oxygen.
Soil|noun|The top layer of the earth's surface where plants grow.