Control Rainwater
When lots of rain falls on hard surfaces, such as concrete sidewalks, driveways, and streets, it runs of, carrying leaves, trash, and car oil into storm drains. Storm drains eventually empty into creeks and rivers. Trash, yard wastes, and car oil causes water pollution. Can you think of a way to help rain water soak into the ground?
(possible answers: divert runoff onto grassed areas, use materials such as wood, flagstone and brick for sidewalks, patios, etc..)