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Crust, Mantle, Outer Core, Inner Core
u still need help
the layers of earth
2. Lava underground
ok bye :(
3. Large convection currents in the aesthenosphere transfer heat to the surface, where plumes of less dense magma break apart the plates at the spreading centers, creating divergent plate boundaries. As the plates move away from the spreading centers, they cool, and the higher density basalt rocks that make up ocean crust get consumed at the ocean trenches/subduction zones. The crust is recycled back into the aesthenosphere. That took a while to type
i thought u had to go?
Thank u anyways (:
i found out i had more time to work lol
so would u still help me?
4. 4. Describe Wegener’s theory of continental drift in detail (i.e. – what are plates, what was the supercontinent called, what evidence supported his theory, etc).
4. How the Earth's crust is split into large sections called tectonic plates is described. Their movement and effects at plate boundaries are explained e.g. earthquakes, volcanoes, mountain building, ocean ridges/trenches, subduction (part of the rock cycle). Evidence to support the theory plate tectonic movement (Wegener's theory of continental drift) is also described e.g. fossil similarities, magnet pole reversal, continent shapes seem to fit into each other etc. That was easy to type up
You typed that in a second cx
The oldest of those supercontinents is called Rodinia and was formed during Precambrian time some one billion years ago. Another Pangea-like supercontinent, Pannotia, was assembled 600 million years ago, at the end of the Precambrian. Present-day plate motions are bringing the continents together once again.
i was already done typing when you posted the question and im a really fast typer
The oldest of those supercontinents is called Rodinia and was formed during Precambrian time some one billion years ago. Another Pangea-like supercontinent, Pannotia, was assembled 600 million years ago, at the end of the Precambrian. Present-day plate motions are bringing the continents together once again is that for 5?
no... that was an add on to question 4
okay go on... (:
5. Plate Tectonics is a theory developed in the late 1960s, to explain how the outer layers of the Earth move and deform. The theory has caused a revolution in the way we think about the Earth. Since the development of the theory, geologists have had to reexamine almost every aspect of Geology. Plate tectonics has proven to be so useful that it can predict geologic events and explain almost all aspects of what we see on the Earth.
divergent boundary, convergent boundary, transform plate boundary
that is for 6
7. An earthquake is caused by a sudden slip on a fault. The tectonic plates are always slowly moving, but they get stuck at their edges due to friction. When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the earth's crust and cause the shaking that we feel. Some of the most common places for an earthquake in the USA are in, 1. Alaska 2. California 3. Hawaii 4. Nevada 5. Washington 6. Idaho 7. Wyoming 8. Montana 9. Utah 10. Oregon
that is in order from a tv show i watched last week
lol ok xD
8. In areas where the plates come together, sometimes volcanoes will form. Volcanoes can also form in the middle of a plate, where magma rises upward until it erupts on the sea floor, at what is called a “hot spot.” The Hawaiian Islands were formed by such a hot spot occurring in the middle of the Pacific Plate.
9. Plate boundary zones are the zones of interaction between adjacent plates where they collide, pull apart or slide past each other. These zones may be anything from a few kilometres to a few hundred kilometres wide.
ALL DONE!!! CHEERS!!!
Omg Thank u very much u been very helpful!
Np fan me and then send me a message on the grade you get.
i'm not gonna get my grade until my teacher looks over it so u gotta wait a bit
That is fine.... good luck!!!