The correct answer for the given question above would be the second option. If your training program is focused on improving how well your heart and lungs work together to supply oxygen to your body during exercise, then the related factor that you are targeting is cardiovascular efficiency. Cardiovascular efficiency measures how well your circulatory system is able to deliver oxygen to the rest of the body.
Friends for sure what do they no compared to them
Answer:
Carbon monoxide detector ,Emergency fire up ladder
Explanation:
Safety precaution
