Temperature Changes
What happens when CO2 levels rise?
what is Earth gets hotter
"They fit together like puzzle pieces"
What is a piece of evidence for Pangea
Which type of respiration uses oxygen?
What is aerobic respiration
Where were plants after the second extinction?
on land
What is the 2nd step in natural selection?
environment changes
What moves continents?
Convection currents in the mantle
What helps determine the age of rocks layers at other locations?
index fossils
How did Earth recover from ice ages like snowball earth?
CO2 released from volcanoes when they erupt
What caused Snowball Earth?
Why would fossils of the same land animals be found on different continents?
All the continents used to be together
When CO2 levels increased in the ocean during the Permian Extinction
Ocean Acidification
After the second extinction, what were the oceans like?
Oceans were frozen
Which of the 3 extinctions we have learned about resulted in Earth being too hot?
Permian Extinction.
What type of boundary forms volcanoes and mountains?
convergent plate boundary
What is created when nitrogen enters the water?
What is a hypoxic zone.
What are 2 adaptations reptiles have to survive the Permian Extinction?
1. skin holds more water
2. kidney keeps in water
3. hard shell on eggs
4. legs underneath the body
Why do CO2 levels impact temperature on Earth?
Greenhouse Effect: the more CO2, the more heat is trapped, the less CO2, the less heat is trapped
Why might ecosystems have changed when continents moved?
They moved closer or farther from the equator
What experienced photosynthesis for the first time ever?
What is: cyanobacteria
A rapid increase in the diversity of life
What is: Cambrian Explosion