Final answer:
Oxygen is both abundant in the Earth's atmosphere and essential for our body's energy production through cellular respiration. It is composed of two oxygen atoms and plays a role in plant growth.
Step-by-step explanation:
Oxygen in the Atmosphere and our Body
Oxygen plays a crucial role in both our atmosphere and our bodies. While the atmosphere is made up of several gases, oxygen is the most abundant gas, making up about 21% of the Earth's atmosphere.
When it comes to our bodies, oxygen is essential. Through a process called cellular respiration, our cells use oxygen to break down food molecules and convert them into energy. This process occurs in the mitochondria of our cells and is vital for the functioning of all living organisms.
Composition of Oxygen
Oxygen is indeed composed of two different atoms. The chemical symbol for oxygen is O, and it consists of two oxygen atoms bonded together, giving it the molecular formula O2. The O2 molecule is stable and makes up the majority of the oxygen in the atmosphere.
Importance of Oxygen for Plant Growth
Oxygen is also important for plant growth, but it is not the only factor. Plants require oxygen for their metabolic processes, just like animals do. They obtain oxygen from the air and also produce it as a byproduct of photosynthesis. However, other factors like sunlight, water, and nutrients are equally crucial for plant growth.
Learn more about Oxygen and its role in the atmosphere and the human body