What is the name for the plates that the crust and upper mantle are cracked into?
Tectonic
3 of 5
Motion of tectonic plates are caused by what sort of currents in the mantle, due to the radioactive decay?
Convection
4 of 5
One theory states that the compounds needed for life on Earth came from reactions involving hydrocarbons, such as methane and ammonia. What do they think provided the energy for this reaction?
Lightning
5 of 5
Other cards in this set
Card 2
Front
What is the name for the centre of the Earth?
Back
The core
Card 3
Front
What is the name for the plates that the crust and upper mantle are cracked into?
Back
Card 4
Front
Motion of tectonic plates are caused by what sort of currents in the mantle, due to the radioactive decay?
Back
Card 5
Front
One theory states that the compounds needed for life on Earth came from reactions involving hydrocarbons, such as methane and ammonia. What do they think provided the energy for this reaction?
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