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Questions and Answers
What animal is a source of cashmere wool?
What animal is a source of cashmere wool?
What is keratin in relation to wool?
What is keratin in relation to wool?
What characteristics of wool are mentioned in the content?
What characteristics of wool are mentioned in the content?
Which term is related to the process of cleaning wool?
Which term is related to the process of cleaning wool?
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What units are mentioned alongside the term 'Grade 9'?
What units are mentioned alongside the term 'Grade 9'?
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What type of fibers come from the fleece of sheep?
What type of fibers come from the fleece of sheep?
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What natural property of wool is highlighted in the text?
What natural property of wool is highlighted in the text?
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Which process is mentioned as being involved in the preparation of wool?
Which process is mentioned as being involved in the preparation of wool?
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Study Notes
Characteristics of Wool
- Wool fibers come from the fleece of sheep and the hair of other animals such as goats (cashmere), camels, and llamas.
- Wool fibers are prepared through a process that involves removing natural impurities, picking out, and blending.
- Wool fibers are made up of a protein called Keratin.
- Variations in wool fibers affect their density and elasticity.
- Wool fibers are used to produce garments and carpets.
- One of the key properties of wool is that it is flame-resistant.
Production of Wool
- Wool fibers are prepared through a process that involves removing natural impurities.
- The process of preparing wool involves picking out and blending.
- The goal of preparing wool is to produce a usable material for garments and carpets.
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Description
This quiz is based on the 9th grade unit about the Earth's structure, covering topics related to the Earth's composition and internal layers.
