The Sense of Smell Signals Danger
Aug 2025 · GM Kids Series 576 Book 405 · GOS Education Inc.
Ebook
35
Pages
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About this ebook
The nose protects our bodies from foreign substances in the air, such as dust and germs.
Mucus from the mucous membranes in the nose contains chemicals that kill bacteria and viruses.
A runny nose is a sign that our body's immune system is working well.
When all the foreign substances in the nose are gone, a runny nose stops on its own.
The nose protects our bodies from foreign substances in the air, such as dust and germs.
Mucus from the mucous membranes in the nose contains chemicals that kill bacteria and viruses.
A runny nose is a sign that our body's immune system is working well.
When all the foreign substances in the nose...
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