My topic was ,What are some human health conditions that are caused from toxic chemicals? Give an illustration.

There are several health conditions that are caused by toxic chemicals . But to understand this you must first understand what a chemical is.A chemical is a substance created by combing two or more chemicals together. Carbon monoxide is one of these chemicals it is a very deadly chemical it will eventually kill you and it effects your respiratory system it is found in polluted areas. Another toxic chemical is mercury it is found in light bulbs its not that deadly until it turns into a gas it will kill you eventually and it causes hallucinations. Arsenic is another powerful chemical it is found in rat poison and in the air at work sites in is deadly and causes many types of cancer.
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