Subtitle: Oxygen
Oxygen is the key gas that triggers us to breathe. Oxygen is a colorless, odorless, tasteless gas that exists in the Earth’s atmosphere. It makes up about 21% of the air we breathe and is essential for life. Oxygen is the most abundant element in the Earth’s crust and is the most important element for respiration in both plants and animals.
When we breathe in, oxygen is taken in through our lungs and sent to our cells. Our cells then use the oxygen to create energy through a process called cellular respiration. This energy is used to power our muscles, cells, and organs and helps keep our bodies functioning properly. Without oxygen, we would not be able to live.
Subtitle: Carbon Dioxide
Carbon dioxide is another important gas that triggers us to breathe. Carbon dioxide is a colorless and odorless gas that is produced when we exhale. When we inhale, oxygen is taken in and carbon dioxide is expelled.
Carbon dioxide is also produced as a by-product of cellular respiration. The carbon dioxide that is created is then expelled from the cells and released into our lungs where it is exhaled. This process helps maintain the balance of oxygen and carbon dioxide in our bodies.
Subtitle: Conclusion
In conclusion, oxygen and carbon dioxide are the two gases that trigger us to breathe. Oxygen is essential for our bodies to create energy and is taken in when we inhale. Carbon dioxide is a by-product of cellular respiration and is expelled from our lungs when we exhale. Without these two gases, we would not be able to survive.
