Which of the following statements is/are correct?
1. Vicuna is one of the softest fibres in the world.
2. Vicuna fibre can be obtained only by killing the animals.
3. Chrysolite is the asbestos, most often found in textile, because of several properties making it specially adaptable to fabrics.
4. Yarn of asbestos may be plain, they may have a core of wire glass or nylon filament that may be piles or cords.
Select the correct answer