Across
- 1. An ozone-friendly product does not produce gases that are harmful to the ozone layer.
- 3. WARMING. A gradual increase in world temperatures caused by gases such as carbon dioxide that are collecting in the air around the earth and stopping heat escaping into space.
- 6. Waste material or unwanted things that you throw away.
- 8. Products that have been designed to do the least possible damage to the environment.
- 15. EFFECT. An increase in the amount of carbon dioxide and other gases in the atmosphere (= mixture of gases around the earth), that is believed to be the cause of a gradual warming of the surface of the earth.
- 16. The act of planting trees on an area of land that has become empty or spoiled.
- 17. Small pieces of rubbish that have been left lying on the ground in public places.
- 18. To put down or drop something in a careless way.
- 19. CHEMICALS. Chemical that can be used to cause death, injury or disease in humans, animals or plants.
- 23. ENERGY. Energy that uses the power of the sun to produce electricity.
- 25. The protection of plants and animals, natural areas, and interesting and important structures and buildings, especially from the damaging effects of human activity.
- 26. Relating to the environment.
- 28. SOURCES. Something such as oil, coal, or the sun, which can be used to provide power for light, heat, machines, etc.
- 31. RAIN. Rain that contains large amounts of harmful chemicals as a result of burning substances such as coal and oil.
- 33. To harm or spoil something.
- 35. CONTAINER. A container that allows the person to separate recyclable materials.
- 36. LEVEL RISING. The rise of the average height of the sea where it meets the land.
- 37. A person who is interested in or studies the environment and who tries to protect it from being damaged by human activities.
- 39. ROOF. Layer of vegetation planted over a waterproofing system that is installed on top of a flat or slightly–sloped roof.
- 40. An unnecessary or wrong use of money, substances, time, energy, abilities, etc.
- 42. To make an area or substance, usually air, water, or soil, dirty or harmful to people, animals, and plants, especially by adding harmful chemicals.
- 43. SPILLS. An accident in which oil has come out of a ship and caused pollution.
- 44. The process of making something dirty or poisonous, or the state of containing unwanted or dangerous substances.
- 45. The quality that some atoms have of producing a type of energy that can be very harmful to health.
- 46. A mixture of smoke, gases, and chemicals, especially in cities, that makes the atmosphere difficult to breathe and harmful for health.
- 48. A substance that makes something less pure or makes it poisonous.
- 49. The cutting down of trees in a large area, or the destruction of forests by people.
Down
- 2. Able to be recycled.
- 4. SITE. Area with large amounts of rubbish where it is buried.
- 5. ENERGY. Energy from a source that is not useless when used, such as wind or solar power.
- 7. To catch and kill animals without permission on someone else's land.
- 9. FRIENDLY. Not harmful to the environment.
- 10. DIOXIDE. The gas formed when carbon is burned, or when people or animals breathe out.
- 11. LAYER. A layer of air containing ozone high above the earth that prevents harmful ultraviolet light from the sun from reaching the earth.
- 12. The air, water, and land in or on which people, animals, and plants live.
- 13. ENERGY. Energy that uses the power of the wind to produce electricity.
- 14. A situation in which something no longer exists.
- 20. The introduction into the environment of a substance which has harmful or poisonous effects.
- 21. SPECIES. A type of animal or plant that might stop existing because there are only a few of that type alive.
- 22. CHANGE. Changes in the world's weather, in particular the fact that it is believed to be getting warmer as a result of human activity increasing the level of carbon dioxide in the atmosphere.
- 24. Convert waste into reusable material.
- 27. RADIATION. Synonym of nuclear fission.
- 29. To make an area or substance, usually air, water, or soil, dirty or harmful to people, animals, and plants, especially by adding harmful chemicals.
- 30. CAR. A vehicle made by combining two different elements.
- 32. A product that is intended to be thrown away after use.
- 34. A person who studies the natural relationships between the air, land, water, animals, plants, etc.
- 38. Something that is of low quality. Synonym of rubbish.
- 41. Relating to ecology or the environment.
- 47. Synonym of ecological.
- 50. OUT. To remove from a place or to get rid of as worthless or unnecessary.