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Questions and Answers
What animal is a source of cashmere wool?
What animal is a source of cashmere wool?
- Sheep
- Llama
- Goat (correct)
- Camel
What is keratin in relation to wool?
What is keratin in relation to wool?
- A protein composition in wool (correct)
- A chemical used to treat wool
- A natural impurity in wool
- A type of synthetic fiber
What characteristics of wool are mentioned in the content?
What characteristics of wool are mentioned in the content?
- High density and low elasticity
- Low elasticity and high density
- Low density and flame-resistance
- High elasticity and flame-resistance (correct)
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.
