Odpowiedź:
1 This material is used to construct modern buildings. concrete
2 This is a very strong metal. steel
3 Cereal and biscuit packets are made of this. cardboard
4 This natural material keeps sheep warm. wool
5 We can see through it. glass
6 Farmers grow it to make cloth. cotton
7 Some of it comes from unsustainable forests. wood
8 Factories transform oil into this material. plastic