Glossary

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a solid network of atoms making up a large crystal with covalent bonds between the atoms.

a method used to refine petrol by breaking covalent bonds between carbon atoms using heat and a...

horizontal tunnels that are dug from the working shaft to the ore body in a mine.

ammonia, carbon dioxide and sulfur-containing products.

the part of the Earth's hydrosphere that is made of frozen water.

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