Ecosystems 0.0 / 5 ? GeographyEcosystemsGCSEAQA Created by: xkylaxwrightCreated on: 15-05-18 22:25 What are the main predators in midwater? Fish 1 of 20 what is the name for an organism that feeds on other dead organisms? Decomposers and scavengers 2 of 20 At what part is their plenty of light and oxygen? Pond surface 3 of 20 What is the role of the producer? To provide basic nutrients to ther organisms in the food chain 4 of 20 What does a food web do? A food web shows how all the organisms in the ecosystem interlink 5 of 20 What kind of change to the ecosystem is disease? Natural factor 6 of 20 What is eutrophication? Hyper-nutrition due to fertiliser pollution in aquatic ecosystems 7 of 20 What is leaching? When nutrients are washed out the sooil by heavy rainfall 8 of 20 What is the name of a large scale ecosystem? Biome 9 of 20 Why do you find higher temperatures in lower lattitudes? Becasue the sun rays have less distance to travel to the equator so are more concentrated. 10 of 20 Are the tropics found in higher or lower lattitudes? Lower 11 of 20 Are the polar regions found in higher or lower lattitudes? Higher 12 of 20 Why is it colder in higher lattitudes? The sun's rays travel a longer distance and are spread over a larger surace area so have less concentration 13 of 20 What air pressure is created when air rises? Low air pressure 14 of 20 What air pressure is created when air sinks? High air pressure 15 of 20 What kind of air pressure do rainforests have? Low air pressure 16 of 20 What weather is commonly found at high pressure? Dry, warm and settled 17 of 20 What weather is commonly found at low pressure? Cloudy and rainfall. 18 of 20 What is the pressure belt? A band of high or low pressure found approximately 30° north and 30° south of the Equator. 19 of 20 What is a consumer? An organism that obtains its energy by eating other organisms. 20 of 20
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