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What is an ecosystem?

1) An ecosystem is an ecological system 2) An ecosystem is a system of plants and animals that live together in a particular environment . The animals and plants interact with each other and their surroundin...
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Answered by Gareth E. • Geography tutor
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What is the impact of river pollution?

1) River pollution can affect people, wildlife and the environment . 2) Loss of oxygen: River creatures and river plants need oxygen to survive. When raw (i.e. untreated) sewage enters a river system it is b...
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Answered by Gareth E. • Geography tutor
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What are the features in the lower course of a river?

1) In the lower course of the river the gradient is gentler than in the upper course. The river has more energy and the volume amount of water is high. 2) In the lower course there is more lateral (sideways)...
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Answered by Gareth E. • Geography tutor
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How do you write an A* synoptic essay?

To achieve an A* in your synoptic essays you must show breadth of knowledge as well as depth. What examiners want to see when they mark your answers is that you have a thorough understanding of the concepts ...
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Answered by Ellie M. • Geography tutor
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What are the properties of the asthenosphere?

(5%) partially molten, low rigidity/plastic/rheid, allows the movement of the plates and mostly composed of peridotite
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Answered by Jamaal P. • Geology tutor
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