Transcript Comprehensive Unit 2 PowerPoint

Carbon, Climate, &
Energy Resources
Unit 2:
The carbon cycle
Where is carbon on Earth?
Limestone
Graphite in a
Shell
pencil
Coal
Plastic bottle
Oil
Automobile tire
Seawater
Steel can
Leaf
Chunk of
Skull
cement
Balloon blown up
Soda pop
Seltzer water with air exhaled by a
person
Piece of wood Black shale
Chunk of
Feather
granite
Peanut
Candle
Obsidian
Diamond
Soil
Fur
Quartz sand
Cotton shirt
Nylon jacket
Atmosphere
Raccoon
Window glass
Where does
carbon
come from?
The Sun is a
giant
thermonuclear
reactor.
NASA
NASA
Wikimedia Commons
1H
+
1H
4He
8Be

+
1H
+
1H
4He
+
4He

8Be
+
4He

12C
How did
carbon
get to Earth?
NASA
Where did
the nebula
come from?
NASA
How did the
nebula contract
to make the
solar system?
1) Static charges
Wikimedia Commons
2) Gravity
NASA
NASA
Example A: Itokawa 25143
JAXA
Example B: Earth
NASA
Reservoirs and fluxes
Sizing up the reservoirs
Reservoir
Atmosphere
Vegetation + soils
Fossil fuels still unburned
Oceans
Crust
Mantle
Area of circle (each
Radius of
2
mm equivalent to 2
circle (mm)
gigatonnes of carbon)
426
1,900
11.6
24.6
2,150
26.2
19,000
2,850,000
5,000,000
77.8
952.5
1,261.6
Sizing up the reservoirs
Sizing up the reservoirs