- 1 - c (Gold and silver are metals)
- 2 - b (Glass is a man-made material)
- 3 - a (We get wool from sheep and other animals)
- 4 - f (Paper is a natural material from a plant)
- 5 - e (Cotton is wood)
- 6 - d (We make leather from the skins of animals)
Ответ: 1-c, 2-b, 3-a, 4-f, 5-e, 6-d