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.
Answer:
When the side of the earth that faces the moon experiences a high tide, the side of the earth that is opposite from the moon will have a<u> high tide.</u>
Explanation:
During the rotation of Earth , moon pulls the Earth , since it is close to Earth .
As moon pulls Earth , it also pulls the water in the oceans , and water can move quite easily and the ocean's water tries to bulge towards the direction of the moon . This process is known as tidal force .
Due to this tidal force , some portion of the ocean will bulge out , and this bulge is referred to as high tide.
Wind is the answer to this.
Answer:
The differences between Karakum and Kyzylkum Deserts are:
1. Karakum means Black Sand because of the black soil that is beneath the sandy desert while Kyzylkum means Red Sand.
2. Karakum has an irrigation system that sustains the farming of most part of Turkmenistan while Kyzylkum is located between two rivers and is shared by three countries, Kazakhstan, Uzbekistan, and Turkmenistan.
The Karakum Desert is a desert in Central Asia.ts name suggests that Black Sand in Turkic languages, in respect to the dark soil that lies at a lower place the sandy surface of abundant of the desert. It occupies concerning seventy %, or 350,000 km², of the realm of country.
The Kyzylkum Desert is in central Asia and its name suggests that Red Sand in Turkic languages. It covers concerning 298,000 km2.D desert fauna embody the Russian turtle.
B. An oceanic plate sinks beneath another oceanic plate at a convergent boundary
