Explain how a delta is formed

Explain how a delta is formed

Explain how a delta is formed

  • Deltas are formed at the end of rivers (river mouth) as it flows into the sea
  • Rivers carry a lot of sediment (mud)
  • The river flows into a calm sea
  • This slows the river down
  • Which makes the river drop its sediment
  • This deposited sediment builds up over years creating a delta
  • The river is forced to split up
  • The smaller rivers made by deltas are called distributaries
  • Examples of Deltas are Nile Delta, Ganges Delta
Water

Agricultural pollution

Agricultural pollution

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Deltas

Deltas

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Disease: Cholera

Disease: Cholera

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Hydrographs

Hydrographs

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Levees and flood plains

Levees and flood plains

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Managing water supplies

Managing water supplies