WHAT IF WE RAN OUT OF OXYGEN FOR 5 SECONDS?

The survival of humans is dependent on the availability of oxygen. It's the main source of intracellular energy, which is essential for human survival. We inhale oxygen and exhale carbon dioxide for our survival. But what if the oxygen supply is interrupted for only five seconds? What would we do if anything like this happened? Is it feasible to hold our breath for just five seconds? What effect would this have on the environment? What would the consequences of a lack of oxygen be on the environment?
The oxygen humans need to survive makes up around 21% of our atmosphere, with nitrogen representing roughly 78% and carbon dioxide and other gases accounting for 1%. Even though oxygen is not the most plentiful gas in our atmosphere, it is the most necessary, not only for people but also for plants and other living organisms.

• Plants, animals, water, and we humans would all perish if we didn't have oxygen. Though five seconds appears to be a fairly tiny period, we can all easily hold our breath for that length of time. Many of us are capable of holding our breath for up to 30 seconds. Some people can even hold it for a minute.

• Without oxygen, the earth would be a drastically different place in just five seconds. Our homes, dams, big buildings, and any other concrete structure would collapse in a moment. In concrete buildings, oxygen acts as a binder, and without it, the compounds lose their firmness.

• Oceans would disintegrate and spill into space. The hydrogen component of the ocean's water becomes an unbound-free gas as oxygen is removed from the water. The lightest gas, hydrogen, will climb to the upper troposphere and gradually leak into space via atmospheric escape.

• The sky began to darken. The sky would become a little less blue and a little more black if there were fewer particles in the atmosphere to scatter blue light since the absence of oxygen equals fewer particles for the light to bounce on.

• Everyone would get sunburned if they went outside. Ozone is a kind of molecular oxygen that absorbs the majority of ultraviolet radiation. We're doomed without it.

• Everyone's inner ear would explode since we'd lose around 21% of our air pressure in an instant, equal to going from sea level to nearly 2000m in a matter of seconds. The eardrums would not become adapted to the pressure variations as a result of this. We would suffer from a condition known as barotrauma, which would result in significant hearing loss.

• The Earth's crust would crumble, plunging everything above ground into free fall. Because oxygen makes up about half of the Earth's crust and mantle, there's suddenly a lot less "element" beneath your feet to keep everything in place.

• There would be no fire without oxygen, and the combustion process in our automobiles would come to a halt. Every means of transportation, except electricity, would immediately fail. Planes flying high in the sky would crash into the ground, causing millions of cars to come to a halt on the highways.

So, Let's take a moment to thank oxygen for maintaining our existence. 
Wait! We can minimize the risk of oxygen shortage in the future. 
Start planting trees.