Category : 2nd Class
Breathing is the physical activity of inhaling and exhaling air. Living things do this act to be alive. Living things, those are not able to do breathing become dead. Human and animals inhale oxygen and exhale carbon dioxide to complete their breathing. The plants inhale carbon dioxide and exhale oxygen. For example men, women, boy, girl, dog, cat, cow, goat, lion etc. inhale oxygen and exhale carbon dioxide, while a banyan tree inhale carbon dioxide and exhale oxygen.
Look at the following picture of living organism inhaling oxygen and exhaling carbon dioxide:
Animals Plants Trees
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