Best Answer: They have an expiration date because they have chemicals in them they will lose their potency if they are not used it time, and they will dry out and become useless. It doesnt matter if they stay in the packet, not opened, ,they will still expire, same as food...lol. Source(s): amanda Â· 7 years ago.
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Illegal immigration is the illegal entry of a person or a group of persons across a country's border, in a way that violates the immigration laws of the destination country, with the intention to remain in the country. The term illegal immigration is controversial and human rights organizations and the UN now use the term irregular migration. Illegal immigration, as well as immigration in general, is overwhelmingly upward, from a poorer to a richer country. Living in another country illegall