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.
Venus can come closest to the earth in its orbit and look brightest in our skies.
Venus is extremely bright because it is the nearest planet to Earth and because most of the sunlight that reaches it (about 70%) is reflected back into space by its thick clouds. The brightest object in the sky, Venus is frequently seen within a few hours after sunset or before sunrise.
The Earth and Venus is 38 million kilometres away at the closest point of opposition. This is the planet's closest approach to Earth. Venus has never travelled more than 261 million kilometres from Earth. the fact that the distance between Venus and Earth may change by a staggering 223 million kilometres.
To learn more about Venus refer
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Its spread mainly because of the pest rats and also fleas
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In my town, I would say I love to get aound by car because its not difficult and you dont have to do anything to prepare it. This form of transportation could be improved by having more speed limits so the people of my town can be safer and smarter when it comes to driving choices.
Explanation:
This is just my town but i hope this helps!
Earth's inner core is solid even though the temperature is so high because the pressure is also very high.
