According to Bio-chemistry experts, a poison is a natural or synthetic substance which causes damage to the tissues, and may cause harmful effects on organisms body.
The effects are based upon how the poison came into contact, which can be,
<em>ingested, inhaled, or absorbed or injected through the skin.</em>
The toxicity of a poison is characterized into two types, as follows;
- <em>Acute toxicity,</em> and
- <em>Chronic toxicity.</em>
The basic difference of Acute poisoning and Chronic poisoning is that, in Acute poisoning the effects came out immediately and are considered to be reversible,
but in Chronic Poisoning the effects can be delayed and came into observation later on, and experts had identified the effects of this poisoning as irreversible. for example, Lung cancer and smoking.
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