RAW MATERIALS AND ENERGY SOURCES

1. RAW MATERIALS

1.1. ANIMAL

1.1.1. Wool

1.1.2. Silk

1.1.3. Hides

1.2. VEGETAL

1.2.1. Cotton

1.2.2. Wood

1.2.3. Cork

1.2.4. Linen

1.3. MINERAL

1.3.1. Copper

1.3.2. Marble

1.3.3. Clay

1.3.4. Iron

2. Energy resources

2.1. Renewable

2.1.1. Solar energy

2.1.2. Wind energy

2.1.3. Tidal energy

2.1.4. Hydro energy

2.1.5. Geothermal energy

2.1.6. Biomass energy

2.2. Non-renewable

2.2.1. Coal

2.2.2. Oil

2.2.3. Natural gas

2.2.4. Nuclear