(Peri)osteum is the answer
I think one thing you could do in order to measure your cardiovascular strength you can do a full sprint run. In order to help improve your fitness levels you can swim, jog/run, body weight exercises, and a balanced diet.
Answer:
nitrogen and oxygen are found in the Earth's stratosphere, which is the second-lowest layer of the atmosphere. These are the two most common gases throughout the whole atmosphere.
Explanation:
Okkie dokkie here you are my friend!
