Gasses in the earths atmosphere 1.0 / 5 based on 1 rating ? ChemistryThe earth and its atmosphereGCSEAQA Created by: percivalcCreated on: 14-05-15 16:18 What are the main gasses in the earths atmosphere? Oxygen and nitrogen 1 of 7 What percentage of the earths atmosphere is nitrogen? About 80% 2 of 7 What percentage of the earths atmosphere is oxygen? About 20% 3 of 7 How can main gasses in the air be seperated? Fractional distillation 4 of 7 What are the gasses oxygen and nitrogen used in? Used in industrys as useful as raw materials 5 of 7 How does CO2 move in and out of the earths atmosphere? By plants, animals, the oceons and rocks 6 of 7 Why has the amount of C02 gone up in the atmosphere recently? Beause we have been burning more fossil fuels 7 of 7
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