Volcanoes
Which of the plate boundaries does NOT create volcanoes? (Transform, divergent, or convergent?)
Transform
In what type of earthquake, is there the weakest?
Divergent
Wegner said that the Earth was once a supercontinent called __________.
Pangea
True/False: Renewable energy does NOT use a fuel source.
TRUE.
The power grids three steps:
1. Generation
2. Distribution
3. _________
Consumption (we use it)
True/False: Hot spots are thin spots in the Earth's crusts that create volcanos. Hawaii's volcanoes are examples of this.
True
What device measures how big a earthquake is?
Seismograph
When one plate goes under the other, this is known as a __________ zone.
subduction
True/False: Oil and coal are renewable because they come from organisms that died millions of years ago.
False: Oil and coal are nonrenewable sources of energy.
Energy from the movement of water
Hydropower
In divergent boundaries, magma rises between the two plates. This type of volcano has slow moving lava. What type of volcano is this?
Shield volcano
What is the area around the pacific ocean that accounts for 90% of Earth's earthquakes and 75% of Earth's volcanoes?
The Ring of Fire
When one plate moves up and the other plate moves down, this is known as a ___________ boundary.
Transform
Where is most of the world's carbon dioxide stored?
The ocean
What is the Earth made of? (3 parts)
Crust, mantle and core
In subduction zones, one crust goes under the other. The friction creates heat and causes the crust to do what?
Melt into magma
Transform and convergent
When two plates move apart, this is a ________ boundary.
Divergent
What does it mean to be carbon net zero?
The carbon you put into the earth is cancelled out by the carbon you take out.
List at least 3 pieces of evidence that prove Wegner's theory of continental drift.
fossils, mountains, finding coal in Antarctica, puzzle piece fit, glaciation, evidence of past climates for continents.
In subduction zones, the friction causes magma to melt. This builds up pressure and causes what type of volcano?
Composite- highly dangerous
The strongest earthquakes happen at ___________ boundaries because of the large amount of friction between 2 plates.
Convergent- subduction zones.
What and how do Earth's plates move?
In the mantle, magma moves through convection currents.
What are examples on how to offset carbon output?
planting trees, investing in renewable energy, reestablishing ecosystems, making green alternatives more available
The San Andreas fault is what type of boundary?
Transform