The lithosphere, which is the rigid outermost shell of a planet (the crust and upper mantle), is broken up into tectonic plates. The Earth's lithosphere is composed of seven or eight major plates (depending on how they are defined) and many minor plates. Where the plates meet, their relative motion determines the type of boundary: convergent, divergent, or transform. Earthquakes, volcanic activity, mountain-building, and oceanic trench formation occur along these plate boundaries. The relative movement of the plates typically ranges from zero to 100 mm annually.[2]
Tectonic plates are composed of oceanic lithosphere and thicker continental lithosphere, each topped by its own kind of crust. Along convergent boundaries, subduction carries plates into the mantle; the material lost is roughly balanced by the formation of new (oceanic) crust along divergent margins by seafloor spreading. In this way, the total surface of the lithosphere remains the same. This prediction of plate tectonics is also referred to as the conveyor belt principle. Earlier theories, since disproven, proposed gradual shrinking (contraction) or gradual expansion of the globe.[3]
Tectonic plates are able to move because the Earth's lithosphere has greater strength than the underlying asthenosphere. Lateral density variations in the mantle result in convection. Plate movement is thought to be driven by a combination of the motion of the seafloor away from the spreading ridge (due to variations in topography and density of the crust, which result in differences in gravitational forces) and drag, with downward suction, at the subduction zones. Another explanation lies in the different forces generated by tidal forces of the Sun and Moon. The relative importance of each of these factors and their relationship to each other is unclear, and still the subject of much debate.
Map is basically, a visual representation of an area showing physical features such as roads, rail, land-forms etc.
There are several type of Map and these includes:
- Political Map
- Physical Map.
- Topographic Map.
- Climatic Map.
- Economic or Resource Map
- Road Map. ...
Now, for this structure and for the fact that the we need to see the land-forms in the photo, a physical map is the best map to use.
The Physical maps shows features such like building, rivers, mountains, lakes and so on in a particular area.
Learn more about Physical maps here
<em>brainly.com/question/3239106</em>
Hi Moran
I don't think there is a big different at all but what I know is that Norway is colder and has more rain.
Another different is because Spain is closer to the equator but Norway is closer to the arctic.
I hope that's help ! Have a nice day :)
The correct answer is C. changes hands frequently
That means that there is no consistency in their work which only means bad things for the state. Laws keep getting changed and people become angrier and angrier with the government.
Explanation:
Erosion erodes rocks and such to form sand. Deposition moves the sand to another place ro form the dunes.
