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...nitrogen and argon. Nitrogen, oxygen and argon comprises of about 99.97% of gas in the atmosphere. Earth’s atmosphere also composed of trace amounts of xenon, ozone, neon, helium, methane, krypton, ammonia, hydrogen and carbon monoxide. Lower part of earth’s altitude also contains water vapour. Earth’s atmosphere also consists of particulate matters which are rain, snow, dust and volcanic ash. Particulate matters are less persistent and highly variable than that of gases (Bradbury, Boyle and Morse, 2002, p.94). Particulate can often remain in the atmosphere for longer period. Importance... ? Atmosphere Table of Contents Introduction 3 Discussion 4 Conclusion 8 References 10 Introduction Atmosphere can be ...