Bio 4.2 Land & Water Pollution 2.5 / 5 based on 2 ratings ? BiologyHuman impact on the environmentGCSEAQA Created by: DanCreated on: 31-03-13 19:13 Sewage and Human waste all contain? Parasites and Toxic chemicals 1 of 9 What is Biodiversity? The range of different wildlife 2 of 9 How can herbicides affect Biodiversity? Herbicides could be washed into stream killing plants 3 of 9 How can Pesticides affect biodiversity? Most pesticides cannot control what pests are killed, killing manier pests 4 of 9 How can fertilizers effect biodiversity? Could be washed into stream increasing Nitrate levels in waters to dangerous levels 5 of 9 What do all these forms of life have in common? They are all part of the food chain 6 of 9 What happens to the food chain when one type of creature is completely killed off from one area? It will have a knock on effect, effecting all forms of biodiversity in that area 7 of 9 Why do we want biodiversity? Because the biodiversity gives us useful resources such as medicine and food 8 of 9 Landfills can also...? Leak out toxic chemicals into streams or on to land 9 of 9
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