Answer:
During combustion or burning, carbon from fossil fuels combine with oxygen in the air to form carbon dioxide and water vapor. These natural hydrocarbon fuels come from once-living organisms and are made from carbon and hydrogen, which release carbon dioxide and water when they burn.
This is something more for your personal experience. It’s like a personal opinion and what you think you’re doing good at.
Oxytocin stimulates the uterine muscles to contract during childbirth
<span>A. Training Intensity, Heart Rate Reserve or HRR is used to describe the difference between resting heart rate and maximum heart rate. Monitoring our heart rate is important especially to the people who are looking for weight loss and fitness improvement and it is also indicates the heart rate reserve cardiovascular fitness of a person. The more people become fitness the more their heart become more efficient at pumping blood to the rest of the body.</span>