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GCSE CHEMISTRY - CHEMISTRY OF THE ATMOSPHERE

Horizontales
This was formed when the Earth started to cool down (two words).
One of the main gases in the atmosphere today (around 20%).
Type of radiation which passes through the Earth's atmosphere and is not absorbed by greenhouse gases (two words),
A human activity which leads to fewer trees moving carbon dioxide from the atmosphere via photosynthesis.
Coal, crude oil and natural gas are......(two words).
One of the main gases in the atmosphere today (around 80%).
Scientists believe these still erupted when the Earth started to cool.
A type of sedimentary rock made up of calcium carbonate.
Verticales
These are formed form carbonate precipitates on the seabed.
The shells and skeletons of marine animals contain these compounds which get trapped when they die.
We believe that the early atmosphere was mainly made up of this gas (two words).
An increase in global temperature is causing these to be more severe.
A type of greenhouse gas.
This condensed and formed the oceans (two words).
A human activity which leads to more farm animals producing methane through digestion.
A type of sedimentary rock which is formed from thick plant deposits.
Type of radiation that reaches the Earth's surface, is absorbed, and then re-emitted as long wavelength radiation. This radiation is absorbed by greenhouse gases in the atmosphere.
An increase in global temperature is causing these to melt (two words).