Hello readers. My name is Alan Lee, a scientist who is studying elements. And now, I am facing the end of the world.
What's happening? The oxygen on the earth is disappearing!!!!!!
How can I know? The earth is done!!!
On 18/12/2043, 5:09p.m. Oxygen,which is an element needed for living things to survive in the world, was starting to disappear.
Oxygen is gas in room temperature. It has no colour and odour.Its symbol is 'O'.Diatomic oxygen gas constitutes 20.8% of the Earth's atmosphere.Oxygen is necessary for us to survive.
Oxygen was isolated by Michael Sendivogius before 1604, but it's commonly believed the element was discovered independently by Carl Wihelm Scheele. It's named by Antoine Lavoisier.
Dioxygen is used in cellular respiration and many major classes of organic molecules in living organisms contain oxygen,and most of the mass of living organisms is oxygen as a component of water, the major constituent of lifeforms.
I can clearly feel that oxygen is disappearing. I am hardly to breathe. I know that I will die soon, and all the other living things will die too. If there're still people alive and read this note, I hope you can record it as human's history.I pray for the Earth.