Environment

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Across
  1. 2. the name of gasses that when in the atmosphere are trapped and lead to global warming
  2. 3. gradual increase in the earth temperature. This is caused by greenhouse gases
  3. 8. A material that cannot decompose. It is not biodegradable and is used in a lot of packaging such as water bottles
  4. 9. when carbon dioxide in the atmosphere increases, __________ increases
  5. 10. the process by which land turns into desert
  6. 11. the process of cutting down forest
Down
  1. 1. periods of time when there is a severe lack of water
  2. 4. rain which contains large amounts of harmful chemicals as a result of burning fossil fuels. Associated with increased sulphur dioxide in the atmosphere
  3. 5. increase in the level of the worlds oceans. Can happen due to melting glaciers
  4. 6. when living organisms die, they are broken down by decomposers (e.g. bacteria) which respire and release co2 into the atmosphere
  5. 7. damage caused to water, air.... by harmful substances or waste.