What is the Earth's Atmosphere?

The Earth's atmosphere is a layer of gases surrounding the planet Earth and retained by the Earth's gravity. It contains roughly (by molar content/volume) 78.08% nitogen, 20.95% oxygen, 0.93% argon, 0.038% carbon dioxide, trace amounts of other gases, and a variable amount (average around 1%) of water vapor. This mixture of gases is commonly known as air. The atmosphere protects life on Earth by absorbing ultraviolet solar radiation and reducing temperature extremes between day and night.

Answer2:Earth's atmosphere and magnetic field are marvels of design that ate still not fully understood. The same could be said of the cycles that sustain life on this planet. Jehovah God's creative power is evident in every facet of the earth's design. Consider the earth's atmosphere, which serves as a protective shield. The sun emits healthful rays and deadly ones. When the lethal rays strike the earth's upper atmosphere, they cause ordinary oxygen to turn into ozone. The resulting ozone layer, in turn, absorbs most of those rays. In effect, our planet is designed with it's own protective umbrella. That is just one aspect of our atmosphere. a complex mix of gases ideally suited to supporting the creatures living on or near the earth's surface. (see Jehovah's Witnesses official website "Creative Power-The Maker of Heaven and Earth)