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A the answer is hydrogen
The earth's atmosphere is what we must breath or we would suffocate and die.
You have that the wrong way round, LIVING things have changed Earth's atmosphere to make it suitable for them. When Earth first came into being, the atmosphere was NOT like it is now, it could not sustain the life that exists today. Over Geological time tiny bacterial organisms generated the Oxygen that we have in our air today, and altered the whole environment of the planed in doing so. Thus the driving factor is LIFE not the atmosphere.
The earth has no need whatsoever for atmosphere. It's the creatures living on earth that need it in order to continue living.
I believe that they dig it out from deep within the ground. After all, coal is composed to dead/decaying living matter. I could be wrong, and I'm sorry if I am. Someone fix it if I am! D:
A the answer is hydrogen
The earth's atmosphere is what we must breath or we would suffocate and die.
Biosphere.
you can't exactly kill Earth's atmosphere because it isn't living, but things like CFCS (chlorofluorocarbons) can damage it
Ozone, on the surface of earth is a corrosive and poisonous gas but at the height of 20-50 km from the Earth i.e. in the earth's atmosphere, becomes vital to life as it absorbs almost all u.v. radiations which are harmful to living things.
The Earth's ozone layer blocks the ultraviolet light and protects the living organisms from the harmful UV rays. If it didn't, then everyone would burn up, we wouldn't be living, Earth would just be a rock floating through space.
more radiation ; bad living conditions for the people of earth
The ozone layer
The ozone layer protects the earth and the organisms on the earth's surface by absorbing the UV rays from our sun
Biggest effect is oxygen. Minor effects is a temperature regulation by modulation of CO2.
The formation of the ozone hole is affecting the living things. The hole in ozone is causing UV to enter and affecting the humans.
Ozone holes makes room for UV rays. These are fatal for life on earth.