What is air and what is air made from? When people think of air, the word oxygen usually comes to mind. However, oxygen is not the only thing found in the air we breathe. Air is made of many different molecules which, when combined, become a necessary component for almost all life on earth. So what is air, and why is it so important?
What is Air?
When looking for the answer to “what is air”, it’s important to remember that air is the invisible gaseous substance that surrounds us, day in and day out, without us even noticing. This air surrounding us is called the atmosphere. Our atmosphere protects us from the extreme heat of the sun, and allows the earth to have different weather and climate patterns. This atmosphere also allows all living creatures to breathe, and all living plants to grow. The composition of air changes depending on the altitude – the higher you are, the less oxygen found in the atmosphere, known as ‘thin’ air. Air is needed for respiration, for photosynthesis, and for combustion.
What is Air Made from?
Air is a mixture of gases that, together, make the earth’s atmosphere. Nitrogen is the primary component of air, at 78.09%, with oxygen being the second largest component at 20.95%. The remaining one percent of air is comprised of argon at 0.93%, carbon dioxide at 0.039%, with additional trace gases of 0.003%. Water vapour, in varying amounts of up to 2%, can also be found in the air.
What is Air:Is it a Requirement for All Living Creatures?
Respiration, or breathing, is necessary for both human and animal life. During the process of respiration, the oxygen part of the air we breathe is transported by the lungs to the parts of the body that need it. In this process, not only is oxygen taken in and used by the body, but carbon dioxide, a waste product of the body, is also expelled. The carbon dioxide is released into the atmosphere when we exhale, and this part of respiration is very important to keep animals healthy.
What is Air: Is it a Requirement for Plant Life?
Plants need the carbon dioxide in the air to begin the very important process of photosynthesis. Photosynthesis is the process where plants use sunlight as energy to convert carbon dioxide from the atmosphere into oxygen and glucose. The glucose is used by the plant as food and the oxygen is released into the atmosphere. The process of photosynthesis is critical to maintain the correct amount of oxygen in the atmosphere.This process points to a symbiotic relationship between plants and animals; animals excrete carbon dioxide necessary for plants to grow and survive, and plants then release oxygen into the atmosphere, which is necessary for animal survival.
The question of “what is air” is a very important one. Air is a precious resource that is required for almost every living creature, animal or plant, to eat, breathe, grow, and continue to flourish. The question of “what is air made from” is becoming more important, as well. As our world changes and more societies become technologically advanced, we must continue to study our atmosphere and ensure the critical balance of the composition of air is maintained.