1. Pollution and Bio-indicators The job of the environmental agency is to protect our ecosystems. For tasks 2 and 3 you will be investigating local ecosystems, identifying organisms that live in those ecosystems and how they depend on each other, you will also be expected to identify pollution bio-indicators.
2. Pollution Look at these ecosystems and decide what has caused the pollution
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6. Cut the pictures out and try to put the Lichens in order of air pollution Remember the bigger and more elaborate the less air pollution
7. Check your answers These are called Crusty These are called Flakey These are called Leafy These are called Shrubby
