topic 9 - atmosphere Flashcards
1
Q
formation
A
surface molten for millions of years. cooled and volcanoes erupted. lots of co2 and nitrogen. rained.
co2 levels dipped when oceans and plants absorbed it.
2
Q
carbon footprint
A
a measure of co2 and other greenhouse gases realised over the full life cycle of something
3
Q
acid rain
A
sulphur dioxide mix with water in the rain and this makes the rain slightly acidic.
