Across
- 1. It is weak or unstable, and seems unlikely to last long or be successful.
- 4. A method of getting rid of very large amounts of rubbish by burying it in a large deep hole.
- 8. You are learning as much as possible in a short time just before you take the examination.
- 10. The death of all its remaining living members.
- 11. Happens earlier than usual or earlier than people expect.
- 12. It goes below the surface of some water or another liquid.
- 13. Chemicals which farmers put on their crops to kill harmful insects.
- 14. When things such as dead plants or animals decompose, or when something decomposes them, they change chemically and begin to decay.
- 15. To reduce it.
Down
- 2. A colorless gas that is the lightest and commonest element in the universe.
- 3. Pieces from something that has been destroyed or pieces of rubbish or unwanted material that are spread around.
- 5. Rubbish that is left lying around outside.
- 6. A mixture of decayed plants and vegetable waste which is added to the soil to help plants grow.
- 7. A substance such as solid animal waste or a chemical mixture that you spread on the ground in order to make plants grow more successfully.
- 9. A chemical that is used to destroy plants, especially weeds.