It is being claimed on social media that the amount of oxygen on earth is decreasing rapidly. If we don’t take care soon, a day will come when there will be no oxygen left even for breathing. All living beings on earth will die due to suffocation. After all, how much truth is there in this claim? What amount of oxygen is necessary for humans to survive? Let us know what research says about this. At present the amount of oxygen in the earth’s atmosphere is only 21 percent. All…
Read MoreIs oxygen really decreasing on Earth? For how long will a human being survive, know this interesting fact
