Earths Carbon Cycle Flashcards
1
Q
How much does a typical car release of CO2 each year
A
10,000 lbs
2
Q
How much is CO2 global emissions in fossil fuels
A
70 billion
3
Q
Vertical axis in keeling curve?
A
Parts per million
4
Q
What causes the annual wiggles
A
Plant growth and decay (summer and winter)
5
Q
Keeling Curve:
A
The measurement of CO2 levels in parts per million over decades – he wanted to know if trees were absorbing CO2 emissions keeling measured how human use of fossil fuels are causing gradual increase over time
6
Q
Global Carbon Cycle
A
Humans extract fossil fuels
fossil fuel emissions, animals, carbon from the ground, and aquatic life respiration or decomposition create CO2 in the atmosphere
CO2 is used for photosynthesis and in water - carbonic acid
sedimentation (very slow) creates more fossil fuels
