The air outside your body because when you tried to hold your breath the pressure builds and forces your body to breath by letting out the air but depending the altitude you are the pressure can change hope this helps
Earth Science i’m guessing ...
Answer:
B
Explanation:
I think the answer is B. Heat poses a huge threat to climate change. Hope it helps!
Answer:
3 would have purple petals, 1 would have white
Explanation: