Across
- 2. farmers have them to grow their crops inside
- 3. becomes limited when light levels and temperature rises
- 4. when plants are grown in water with a balance of mineral ions
- 6. a factor that can affect the rate of photosynthesis
- 9. can be used to grow plants instead of using soil
Down
- 1. things that are grown in a greenhouse
- 2. is the process plants do to make food
- 5. a place where people grow plants inside
- 7. for photosynthesis to take place plants need light, carbon dioxide and soil
- 8. one of the materials that geenhouses can be made from