The need for oil, iron ore, copper, tungston, etc. (raw materials).
the sea
sunlight
Come from nature and are use
The different raw materials of the PC basically come from plastics and polymers. There are others which directly come from metals that are mined like copper and aluminum.
OIL!
Wool and meat.
Tullaroan Co.Kilkenny, Ireland
PROTEINS
The raw materials for silk come from the tiny creature known as the silk worm, which is the caterpillar of the silk moth Bombyx mori.
Charcoal is typically produced from raw materials such as wood, coconut shells, or other plant materials. These raw materials are heated in the absence of oxygen through a process called pyrolysis, which results in the formation of charcoal.
Glucose comes from the food you eat.