The Atmosphere Flashcards
What makes today’s atmosphere
Oxygen
Nitrogen
Other gases - water vapour CO2
Why can’t scientist be certain about the earth atmosphere
The earth is old
What causes gases in early atmosphere
Volcanic activity
How were oceans formed
Water vapour form volcanic eruptions condensed to form oceans
How did carbonate rocks form early
Carbon dioxide dissolved in oceans
Forms weak acid
Reacted with minerals to form precipitates
Uses of carbon dioxide in the sea
Make corals and shells
Die and form limestone
Trapped in fossil fuels
How did oxygen in early atmosphere
Photosynthesis in Algea
Then plants
Equation photosynthesis
Carbon dioxide + water = glucose and oxygen
What re scientists not sure about early atmosphere
Limited evidences
Billions of years old
The catalyst in catalytic converter is is a mixture of three elements when the periodic table are these elements most likely to come from
Transition metals
Two reasons why wood is more sustainable than finite resources
Renewable
Carbon neutral
What does a matrix do
It’s what holds the thing together
How is coal formed
High temp and pressure
What can cause fossil fuels forming
No decomposition
Lack of oxygen
Acidic conditions
