Flashcards
GCSE Chemistry of the atmosphere
Flashcards do conjunto (7)
- 1What was the early atmosphere made up of?The Early atmosphere was made up of mostly carbon dioxide with virtually no oxygen. This is like the atmosphere of mars and Venus today
- 2What else does volcanic activity release?Nitrogen, water vapor, methane and ammonia
- 3How were oceans formed?The water vapour in the air condensed
- 4Why did lots of carbon dioxide get removed from the early atmosphere?The carbon dioxide was dissolved in the oceans. The dissolved CO2 went through a series of reactions to form carbonate precipitates that formed sediments on the seabed
- 5How did green plants and algae evolve?They absorbed some of the carbon dioxide so that they could carry out photosynthesis
- 6What human activity is reducing carbon dioxide reduction?Deforestation, fewer trees means less CO2 is removed via photosynthesis
Burning fossil fuels, releases the CO2 that was trapped inside them
Agriculture, more farm animals produce more methane through digestion
Creating waste, more landfill sites means more CO2 and methane by decomposition
- 7What are carbon footprints?Carbon footprints are a measure of the a,punt of carbon dioxide and other greenhouse gasses released over the full life cycle of something
Informações
- Descrição
- GCSE Physics Chemistry of the atmosphere. These flash cards are an easy way to help remember some of the basic elements of Earth's atmosphere and how they came to be.
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- Usuário eliminado · dez 2018
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- Criado por Fraser Fittall · 7 dez 2017
- Copiado por bill fingleton · 31 dez 2018
- Copiado por bill fingleton · 31 dez 2018
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