Unit 2 test Flashcards
Plate tectonics
A theory that states earth’s outer shell is made up of individual plates that move, causing earthquakes, valcanoes, mountains, fossil fuels, formation and destruction of the lithosphere
Weathering
The process of breaking down rocks by water, wind, chemicals, and living things
Erosion
The process of moving broken up pieces of rock
Deposition
The process of eroded materials building up in a new location
Glaciation
The process of ice advancing and covering large areas of land
What is earth’s plate made of
Rocks
What is the scale used to measure earthquake’s energy
Richter scale
Large wave cause by an earthquake
Tsunami
What is the geolgical feature created when two plates on the sea floor move apart and magma comes up from the earth’s core
Ridge
Canada’s most remote region
Innuition Mountains
The name given to the four time periods that represent earth’s history
Eras
the meaning of the term “Mesozoic”
middle life
the minor plate off the coast of British Columbia
juan de fuca plate
rocks that are formed from cooled magma/lava
igneous rock
the type of rock that forms as a result of erosion, deposition, and compression
sedimentery
an immense area of ancient, worn down mountains
canadian shield
Earthquakes and volcanoes frequently occur
at the edges of plates
Most tectonic plates are made up of
both a continent and an ocean
It is likely that the Earth’s tectonic plates are moving as a result of
the movement of molten rock inside the Earth
Plate tectonics played a role in
the formation of the mountain chains on the east and west coasts of Canada
the development of fossil fuels in Canada
the tsunami of December 26, 2004
the location of earthquakes and volcanoes
During the Cenozoic era, the North American and Pacific plates collided creating the
Rocky Mountains
the type of rock in which fossils are found
sedimentary
The last period of glaciation in Canada ended about
15 000 years ago
Canada is made up of the following types of landforms
shield
highlands
lowlands
mineral deposit used for fertilizer which lies below some parts of the Interior Plains
potash
The Great Lakes–St. Lawrence Lowlands is
the most densely populated region in Canada
Why is there so little farming in the Canadian Shield
rock and poor soil
The tsunami of March 11, 2011 was caused by a powerful undersea earthquake off the coast of
B.C
The movement of Earth’s tectonic plates is due to
convection currents
Earthquakes and volcanoes frequently occur
at the border of tectonic plates
The term that describes one plate “sliding under” another is
subduction
The majority of the population living in the Canadian Shield is made up of
Aboriginals
The most important agricultural areas in Canada are located in the _______________________ and _________________________ regions.
St.lawrence LL and interior plains
The oldest highland region in Canada is the
Appalachian mountains
The Canadian Shield is an important source of __________________ and ______________.
mettalic minerals and diamonds
Areas of Canada that are very flat, with deep, rich soils, were formed by
glaciation
Most of Earth’s volcanoes occur along
the ring of fire
Deposits of oil, gas, and coal were formed when Canada’s land mass was located in a ____________________ climate.
tropical
The mixture of loose sediments and rocks of all sizes deposited by glaciers is called __________.
till
Limestone is formed from ____________________.
the shells of marine animals
When igneous and sedimentary rocks are exposed to heat and pressure, a ____________________ rock is created.
metamorphic
What is a moraine
Hilly deposists of till
