Across
- 1. The green pigment required for photosynthesis.
- 3. A use of plants that relates to people's health.
- 4. These chemicals help crops faster and stronger.
- 5. These chemicals are sprayed onto crops to kill the pests that feed on them.
- 9. The place where an organism lives.
- 10. The product of photosynthesis that a plant uses for energy.
- 12. The way that plants and animals rely on each other to survive.
- 14. This word describes the range of species found in an area.
- 15. Burning fossil fuels and driving cars can cause this.
Down
- 2. A problem caused by taking too many fish out of the sea.
- 5. The human ___________ is growing rapidly, meaning food production must be increased.
- 6. You can test a leaf for this to find out if the plant has carried out photosynthesis.
- 7. An animal that eats both plants and meat.
- 8. This step in the carbon cycle describes organisms releasing carbon dioxide.
- 11. Animals that are hunted by other animals.
- 13. This step in the carbon cycle describes burning fuels.
- 15. The organism found at the start of every food chain, that makes its own food.