What do you do when something irritates your trachea or bronchi?

If something gets in your trachea or bronchi, your body does this to clear the passageway. Your body forces you to do this if your brain thinks you're not getting enough oxygen. This prevents food from going down your trachea (windpipe). Breathe in.

Explanation:

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explanation:

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explanation:

b,bacteria convert nitrates

into nitrogen gas.

d,plants and animals take in

and use nitrogen compounds.

e,bacteria break down waste    

products and return nitrogen  

to the soil.

a,bacteria convert atmospheric

nitrogen to ammonia.

c,bacteria convert ammonia

to nitrites and nitrates.