1. Go to the woods. Bring a pinecone home.
2. Put the cone in a pot with some soil - so that most of it stands out.
3. Everyday water it with a small amount of water, as excess water makes the cones rot.
4. After some time, a tiny tree will appear.
5. Congratulations! You just started oxygen production and you have a piece of forest in your own home.
[from the Internet]
