Question

what happen when the oxygen is gone from the earth for 5 seconds​

Answer 1

Answer:

In just 5 seconds, the Earth would look completely different. Without oxygen, you can say goodbye to the Hoover Dam, the Pantheon Dome and anything else made out of concrete. These structures would instantly collapse. Oxygen acts as a special binding agent to concrete.

Answer 2

In 5 sec water will be disappeare because oxygen from water had gone and only h2 remains which will go upward in atmosphere.