Escapes Unit 4 test Flashcards
(32 cards)
Which islands are the newest and what way does the arrow point.
Newest islands are the largest with the arrow pointing to the other islands.
What does the hot spot do while the plate travels over it.
Stays still
What type of plate boundary is under Iceland.
Divergent
Example of a fine grained, Mafic, igneous rock
Basalt (See reference table)
How do igneous rocks form (intrusive and extrusive)
Extrusive forms from lava on earth’s surface, while intrusive forms from magma cooling inside of earth
Name the 4 outgassing in order of abundance
Water/CO2/Nitrogen/SO2
Felsic rocks are rich in
Si and Al
Mafic are rich in…
Fe and Mg
What to always include in latitude and longitude.
Always include north, south, east or west
What are the circles of convection called
Cells
What direction do convections start with
Always start going up
How do scientists know that a volcano is about to explode
Carbon Dioxide and Sulfer Dioxide go up
How to prepare a community
Store water and food supplies
What layer do convection currents take place
In the asthenosphere
What kind of power plant will you need to identify
Geothermal
Bat things about geothermal plant
- cost
- pollution
Good things about a geothermal plant
- Can heat and cool
- No Fossil fuels
Where is humus in the soil
At the top layer
Where is the layer with the most sediment
The layer at the bottom
What helps keep layers in place
roots
Where is the most organic layer
the top layer
What would be a bad thing about overgrazing
No roots = erosion
Primary Succession
When barren land is occupied by organisms for the first time
Secondary succession
When a disturbance impacts a community bringing it back to barren where succession wil begin again.
