Evolution of the Atmosphere Flashcards
1
Q
What is the first step in how scientists believe the atmosphere evolved?
A
The early atmosphere was created by volcanic activity and consisted mainly of Carbon Dioxide and Water Vapour.
2
Q
What is the second step in how scientists believe the atmosphere evolved?
A
As the Earth cooled, the Water Vapour condensed to form the oceans.
3
Q
What is the third step in how scientists believe the atmosphere evolved?
A
Simple photosynthetic organisms evolved in the oceans, adding Oxygen to the atmosphere and removing Carbon Dioxide.
4
Q
What is the fourth step in how scientists believe the atmosphere evolved?
A
Some Carbon Dioxide was removed due to it dissolving in the oceans and forming Sedimentary Rocks and Fossil Fuels.
