Across
- 3. the material on the surface of the ground in which plants grow
- 4. the planet third in order of distance from the sun, between Venus and Mars; the world on which we live
- 5. the place something comes from or starts at, or the cause of something
- 6. a valuable or useful chemical substance that is formed naturally in the ground
Down
- 1. not using artificial chemicals in the growing of plants and animals for food and other products
- 2. protection from bad weather, danger, or attack
- 3. material with particular physical characteristics