Sediment cores
Ice cores
Tree rings
All of the above
Spaceships
Energy
Humans
Carbon dioxide
1600
1800
1900
2000
Hurricane
Short-term heatwave
Tornado
A 30-year drought
6. True or false? Organisms that cannot adapt to changing climate or move away from their environment may become extinct.
Increase public transportation use
Turn off lights when leaving a room
Unplug electronics when not in use
Oxygen
Nitrogen
Cellulose