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7 Cards in this Set

  • Front
  • Back

Phase 1- Volcanoes Gave out gases

Carbon Dioxide and Water Vapour were the main Gases in the early atmosphere

Phase 2- Green Plants Evolved and Produced Oxygen

Green plants removed Co2 from the air and produced o2, by photosynthesis

Phase 3- ozone layer allows evolution of complex animals

The oxygen created the ozone layer which lead to the evolution of more complex cells

Human Activity changing the Atmosphere

Burning Fossil Fuels


Deforestation


Livestock Farming

Volcanic Activity changing the Atmosphere

Carbon Dioxide


Sulfur Dioxide

Information on the evolution of the atmosphere are limited

Antarctic Ice Cores- examine the bubbles


Mainly Guesswork

Investigation of proportion of the oxygen in the atmosphere

2Cu + O2 --> 2CuO

2Cu + O2 --> 2CuO