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