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birds have air sac that work as bellow that ensure the unidirectional flow of air

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How does a room get oxygen?

A room gets oxygen through ventilation, which allows fresh air containing oxygen to flow into the room. This can be achieved through open windows, doors, or a ventilation system. Additionally, houseplants can also help to increase oxygen levels in a room through the process of photosynthesis.


What is noninvasive and invasive ventilation?

Noninvasive ventilation provides respiratory support without the need for an artificial airway, typically through a mask or nasal prongs. In contrast, invasive ventilation requires the insertion of a tube into the airway, usually through the mouth or nose, to provide respiratory support. Noninvasive ventilation is often preferred when possible to reduce the risks associated with invasive ventilation.


What is ventilation controlled fire?

Ventilation-controlled firea fire where the fire growth is determined by the amount of air available. A ventilation-controlled fire occurs when there is not enough air to burn all the materials being pyrolyzed.RAKESH KUMAR MEENA , rk_fire@hotmail.comfor fire related question plz contact me by email.thank u


What is the difference between ventilation and breathing?

Breathing is the process of taking air into and out of the lungs, while ventilation refers to the movement of air in and out of the lungs to facilitate gas exchange. Ventilation involves both breathing (inspiration and expiration) and the distribution of air within the lungs.


What percent of oxygen do mouth to mouth ventilation provide?

Approximately 10-15% oxygen is left in expelled air. it's plenty enough for mouth to mouth ventilation.

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"Birds of a feather flock together."


When was Reader's Digest Complete Book of Australian Birds created?

Reader's Digest Complete Book of Australian Birds was created in 1976.


How many pages does Reader's Digest Complete Book of Australian Birds have?

Reader's Digest Complete Book of Australian Birds has 616 pages.


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Birds of a feather flock together, but all birds cannot fly.


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Puritans and yellow birds?

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