See what we can offer to your school
"SimpleStudy just makes sense...”
Get the best plan for your school
12 cards from this deck
About 200 million years
About 78% (roughly 4/5)
About 21% (roughly 1/5)
Carbon dioxide
About 4.6 billion years ago
CO2CO_2CO2, H2OH_2OH2O, small amounts of CH4CH_4CH4 and NH3NH_3NH3
Water vapour from volcanoes condensed as Earth cooled
Dissolved into newly formed oceans
About 95%
About 96%
Ability to form oceans which absorbed CO2CO_2CO2
Select your subjects, and get access to A+ resources today.