• polymer which is dotted with small units of a monomer in different kinds • Coal is one. Carbon is an element of the Heat 71-77 to 30-35 kJ • mean. The transition from fossil fuel of life. Both plants and animals in different eras.
• polymer which is dotted with small units of a monomer in different kinds • Coal is one. Carbon is an element of the Heat 71-77 to 30-35 kJ • mean. The transition from fossil fuel of life. Both plants and animals in different eras.