w

Which of the following statements is true of the lithosphere?

Which of the following statements is true of the lithosphere?

Lithosphere – major domains of the earth | class 6 geography

1)In terms of the lithosphere and asthenosphere, which of the following statements is TRUE? The asthenosphere is liquid, while the lithosphere is solid and mobile. The lithosphere is solid and mobile, while the asthenosphere is solid and rigid. They’re both strong and rigid. The lithosphere is solid and rigid, while the asthenosphere is solid and mobile. 2)How does seismic wave frequency change as it travels from the crust to the mantle? They slow down and curve inwards away from the surface of the Earth. They accelerate and bend inwards away from the surface of the Earth. They slow down and bend upwards towards the top of the Earth. They accelerate and bend upwards towards the top of the Earth. 3)The thickness of the Earth’s crust is constant throughout. False True

Fill in the following blanks with suitable words: (a) the form of

The lithosphere is the Earth’s rigid outer layer. The lithosphere is made up of the porous upper mantle and the crust, which are the Earth’s outermost layers. The atmosphere above it and the asthenosphere (another component of the upper mantle) below it define its boundaries.
Although the lithosphere’s rocks are still considered elastic, they are not viscous. The asthenosphere is viscous, and geologists and rheologists—scientists who research the movement of matter—mark the gap in ductility between the two upper mantle layers at the lithosphere-asthenosphere boundary (LAB). The tendency of a solid material to deform or stretch under stress is determined by ductility. The lithosphere has a much lower ductility than the asthenosphere.
The North American, Caribbean, South American, Scotia, Antarctic, Eurasian, Arabian, African, Indian, Philippine, Australian, Pacific, Juan de Fuca, Cocos, and Nazca tectonic plates make up the lithosphere.
The majority of tectonic activity occurs at the plates’ borders, where they can collide, break apart, or slide against one another. The movement of tectonic plates is allowed by thermal energy (heat) from the lithosphere’s mantle. The lithosphere’s rocks become more elastic as a result of thermal energy.

Study the given flow chart and select the correct statement

The lithosphere is the fluid sections of the Earth’s convection system’s surface layer, so it thickens over time. It is divided into plates (as seen in the image on the left), which shift independently of one another. Plate tectonics is the study of the movement of lithospheric plates.
The lithosphere and asthenosphere divisions of Earth’s outer layers should not be confused with the chemical division of the outer Earth into mantle and crust. The lithosphere includes all crust, but the lithosphere normally contains more mantle than the crust.
The thickness of the oceanic lithosphere is normally between 50 and 100 kilometers (but beneath the mid-ocean ridges is no thicker than the crust). The lithosphere of the continent is thicker (about 150 km). It is made up of about 50 kilometers of crust and 100 kilometers or more of upper mantle.
The oceanic lithosphere is denser than the continental lithosphere, which has a mantle combined with a crust composed of felsic rocks and consisting mostly of mafic crust and ultramafic mantle. The change in chemical composition that occurs at the Moho discontinuity separates the crust from the upper mantle. As the oceanic lithosphere ages and pushes away from the mid-ocean ridge, it thickens. Conducted cooling allows the oceanic lithosphere to thicken by transforming hot asthenosphere into the lithospheric mantle, allowing the oceanic lithosphere to become increasingly dense with age. For a few tens of millions of years, the oceanic lithosphere is less dense than the asthenosphere, but after that, it becomes gradually denser than the asthenosphere. The gravitational instability of mature oceanic lithosphere causes the oceanic lithosphere to sink underneath the overriding lithosphere, which may be oceanic or continental, at subduction zones. At mid-ocean ridges, new oceanic lithosphere is continuously formed and recycled back to the mantle at subduction zones. As a consequence, the oceanic lithosphere is far younger than the continental lithosphere, with the oldest oceanic lithosphere dating back around 170 million years and sections of the continental lithosphere dating back billions of years.

Lithosphere – ii exogenetic processes | unit 2 | class 9

The lithosphere is the fluid sections of the Earth’s convection system’s surface layer, so it thickens over time. It is divided into plates (as seen in the image on the left), which shift independently of one another. Plate tectonics is the study of the movement of lithospheric plates.
The lithosphere and asthenosphere divisions of Earth’s outer layers should not be confused with the chemical division of the outer Earth into mantle and crust. The lithosphere includes all crust, but the lithosphere normally contains more mantle than the crust.
The thickness of the oceanic lithosphere is normally between 50 and 100 kilometers (but beneath the mid-ocean ridges is no thicker than the crust). The lithosphere of the continent is thicker (about 150 km). It is made up of about 50 kilometers of crust and 100 kilometers or more of upper mantle.
The oceanic lithosphere is denser than the continental lithosphere, which has a mantle combined with a crust composed of felsic rocks and consisting mostly of mafic crust and ultramafic mantle. The change in chemical composition that occurs at the Moho discontinuity separates the crust from the upper mantle. As the oceanic lithosphere ages and pushes away from the mid-ocean ridge, it thickens. Conducted cooling allows the oceanic lithosphere to thicken by transforming hot asthenosphere into the lithospheric mantle, allowing the oceanic lithosphere to become increasingly dense with age. For a few tens of millions of years, the oceanic lithosphere is less dense than the asthenosphere, but after that, it becomes gradually denser than the asthenosphere. The gravitational instability of mature oceanic lithosphere causes the oceanic lithosphere to sink underneath the overriding lithosphere, which may be oceanic or continental, at subduction zones. At mid-ocean ridges, new oceanic lithosphere is continuously formed and recycled back to the mantle at subduction zones. As a consequence, the oceanic lithosphere is far younger than the continental lithosphere, with the oldest oceanic lithosphere dating back around 170 million years and sections of the continental lithosphere dating back billions of years.