USAID Environmental Restoration for the Aral Sea Quiz

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Questions and Answers

What led to the desiccation of the Aral Sea?

  • Natural evaporation due to climate change
  • Excessive rainfall causing the sea to shrink
  • Introduction of non-native species affecting the water balance
  • Diversion of rivers for Soviet irrigation projects (correct)

What is the current status of the eastern basin of the Aral Sea?

  • It has completely dried up (correct)
  • It has remained relatively unchanged
  • It has turned into a freshwater reservoir
  • It has experienced a significant increase in water level

What is the Aralkum Desert known as?

  • A fertile agricultural region
  • A tropical rainforest
  • The world’s newest desert (correct)
  • A thriving wetland ecosystem

What were the unsustainable water management practices in the region primarily driven by?

<p>Irrigation of cotton, wheat, and rice (A)</p> Signup and view all the answers

What was the original size of the Aral Sea before its significant shrinkage?

<p>Fourth largest lake in the world (C)</p> Signup and view all the answers

What was the rank of the Aral Sea in terms of size before it started shrinking?

<p>Fourth largest lake in the world (B)</p> Signup and view all the answers

Which rivers were diverted for irrigation projects, leading to the shrinkage of the Aral Sea?

<p>Amu Darya and Syr Darya (C)</p> Signup and view all the answers

What transformation did the unsustainable water management practices cause in the landscape and ecosystem?

<p>Transformation into a desert (B)</p> Signup and view all the answers

What did satellite images from NASA in 2014 reveal about the eastern basin of the Aral Sea?

<p>It had completely dried up (B)</p> Signup and view all the answers

What is the Aral Sea disaster known as?

<p>One of the world's most notorious environmental problems (D)</p> Signup and view all the answers

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Study Notes

Aral Sea Desiccation

  • The unsustainable water management practices in the region, primarily driven by the Soviet Union's cotton production goals, led to the desiccation of the Aral Sea.
  • The Aral Sea, once the world's fourth-largest lake, was reduced to a residual lake, with the eastern basin completely drying up.

Current Status of the Eastern Basin

  • The eastern basin of the Aral Sea is completely dry and has become the Aralkum Desert, also known as the "new desert".
  • Satellite images from NASA in 2014 revealed that the eastern basin had completely dried up.

Original Size and Rank

  • The Aral Sea originally covered an area of around 68,000 square kilometers, ranking as the world's fourth-largest lake by size before its significant shrinkage.

Causes of Shrinkage

  • The Amu Darya and Syr Darya rivers were diverted for irrigation projects, leading to the shrinkage of the Aral Sea.

Environmental Impact

  • The unsustainable water management practices caused a transformation in the landscape and ecosystem, resulting in the loss of biodiversity and habitat destruction.
  • The Aral Sea disaster is known as one of the worst environmental disasters in the world.

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