Answer:
D
Explanation:
When you breathe in, oxygen flows into your lungs. From there, oxygen is transported through the bloodstream, back to your heart, and around the body.
Answer:
£12500.00
Explanation:
1000/2=x/25
x=25*1000/2
x=25000/2
x=12500
Hope this helps plz hit the crown :D
Answer:
the study of the structure, reaction, and composition of different kinds of substances
Explanation:

I thinks it is C not sure hough
Try not to go out as much as possible. If you go out, you must wear a mask or other things. When you go home, you must disinfect it. You can use alcohol spray or hand sanitizer.