Across
- 5. when plants use sun rays as food.
- 6. where gases in Earths atmosphere trap heat to warm planet.
- 7. An organism that uses sunlight to make food.
Down
- 1. Made of gases surrounding the Earth
- 2. natural resources that is made from remains of ancient plants and animals.
- 3. where life is found on Earth
- 4. rocks , minerals, and soil.