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Questions and Answers
What is clay primarily used for in modern agriculture?
What percentage of the world’s fresh water supply does agriculture use?
70%
In which area is Ole Sivertsen's company working with date farmers?
Yuma, USA
Sandy soil retains water better than clay soil.
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What does Ole Sivertsen's invention involve mixing with water?
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Ole's liquid clay technology is inexpensive, costing around $200 per acre.
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What is the claimed benefit of Ole's technique regarding water usage for fruit trees?
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Ole's liquid clay uses chemicals in its composition.
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What concern does Myra Anubi express regarding manipulation of soil?
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Study Notes
Water Stress
- Over 2 billion people live in water-stressed countries.
- Water is essential for drinking, cooking, washing, and agriculture.
- Droughts are increasing due to climate change.
Yuma: The Driest Place on Earth
- Agriculture uses 70% of the world’s freshwater supply.
- Yuma, USA, has experienced its worst drought in 500 years.
- Farmers in Yuma use Desert Control's liquid clay technology.
Sandy vs Clay Soil
- Sandy soil drains water quickly.
- Clay soil holds water due to smaller particles that cling together.
- Liquid clay technology utilizes clay particles to create a sponge-like soil that holds water.
Benefits of Liquid Clay
- Liquid clay kickstarts the growth of date palm trees by improving water retention.
- It can halve the amount of water required for fruit tree growth.
- Farmers can potentially recoup their investment within two years.
Concerns about Liquid Clay
- It is potentially costly for farmers.
- There might be long-term effects on soil health and the environment.
- The long-term impact of manipulating soil through liquid clay is still unknown.
Glossary
- Water stressed country: A country with limited access to clean water for drinking, cooking, and washing.
- Drain: To remove liquid from something.
- Cling: To stick together tightly.
- Manipulate: To use and control something skilfully to achieve a result.
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Description
Explore the challenges of water stress affecting over 2 billion people globally and the innovative solutions like liquid clay technology being utilized in Yuma, the driest place on Earth. This quiz covers the impact of these technologies on agriculture and water retention in various soil types. Learn about the benefits, concerns, and sustainability of these practices.
