What are the 2 types of crust *?
Earth's crust is divided into two types: oceanic crust and continental crust.
What are the types of crust give example and its type?
There are three main crust: Pâte Brisée – Pie crust. Pâte Sucrée – Sweet pie crust (shortcrust) and Pâte sablée – Rich shortcrust (sweet cookie crust or shortbread crust)
What is the oceanic crust?
oceanic crust, the outermost layer of Earth's lithosphere that is found under the oceans and formed at spreading centres on oceanic ridges, which occur at divergent plate boundaries. Oceanic crust is about 6 km (4 miles) thick. It is composed of several layers, not including the overlying sediment.
What is a continental crust?
continental crust, the outermost layer of Earth's lithosphere that makes up the planet's continents and continental shelves and is formed near subduction zones at plate boundaries between continental and oceanic tectonic plates. The continental crust forms nearly all of Earth's land surface.
What is oceanic and continental crust?
What is the difference between Oceanic and Continental Crust? Oceanic crust is dominated by mafic and ultramafic intrusive igneous rocks whereas continental rocks are dominated by granitic (felsic) intrusive igneous rocks.
What is continental and oceanic crust?
The oceanic crust is mainly made out of dark basalt rocks that are rich in minerals and substances like silicon and magnesium. By contrast, the continental crust is made up of light-colored granite rocks full of substances like oxygen and silicon.
What are convergent and divergent plates?
Divergent boundaries — where new crust is generated as the plates pull away from each other. Convergent boundaries — where crust is destroyed as one plate dives under another. Transform boundaries — where crust is neither produced nor destroyed as the plates slide horizontally past each other.
What is the difference between converging and diverging?
Converging tectonic plates are the one that come towards each other and form a convergent boundary while diverging tectonic plates are the one that move away from each other and form divergent boundaries.
What are the 3 main plate boundaries?
Most seismic activity occurs at three types of plate boundaries—divergent, convergent, and transform. As the plates move past each other, they sometimes get caught and pressure builds up.
How do convex lenses differ from concave lenses *?
A convex lens or converging lens focuses the light rays to a specific point whereas a concave lens or diverging lens diverges the light rays. A lens is a transparent material (either curved or flat surface) based on the principles of refraction.
What is the difference between Western Ghats and Eastern Ghats?
The Western Ghats runs parallel to the western coast in a north-south direction from the Tapi River to Kanyakumari. But the Eastern Ghats runs in a north-east to a south-west direction parallel to the eastern coast from Orissa to the Nilgiri hills.
What are the 4 types of tectonic plates?
What are the major plate tectonic boundaries?
- Divergent: extensional; the plates move apart. Spreading ridges, basin-range.
- Convergent: compressional; plates move toward each other. Includes: Subduction zones and mountain building.
- Transform: shearing; plates slide past each other. Strike-slip motion.
What are the 4 plate boundaries?
There are four main types of plate boundary. These are constructive, destructive, conservative and collision margins.
What do you mean by optical Centre of a lens?
Medical Definition of optical center : a point on the axis of a lens that is so located that any ray of light passing through it in passing through the lens suffers no net deviation and that may be within, without, or on either surface of the lens.
What kind of lens can be used to produce a real image a virtual image?
A real image can be produced by a convex lens while a virtual image can be formed by both convex and concave lenses.
What is the southern plateau?
The large Deccan Plateau in southern India is located between the Western Ghats and the Eastern Ghats, and is loosely defined as the peninsular region between these ranges that is south of the Narmada river. To the north, it is bounded by the Satpura and Vindhya Ranges. Deccan Plateau. Deccan.
What are Ghats?
Ghats, two mountain ranges forming the eastern and western edges, respectively, of the Deccan plateau of peninsular India. The two ranges run roughly parallel to the Bay of Bengal and Arabian Sea coasts, respectively, from which they are separated by strips of fairly level coastal land.
What are the 3 types of boundaries?
Tectonic Plates and Plate Boundaries
- There are three main types of plate boundaries:
- Convergent boundaries: where two plates are colliding.
- Divergent boundaries – where two plates are moving apart.
- Transform boundaries – where plates slide passed each other.
What are the 3 types of tectonic plates?
Most seismic activity occurs at three types of plate boundaries—divergent, convergent, and transform. As the plates move past each other, they sometimes get caught and pressure builds up.
What are the 6 types of plate boundaries?
2:325:376 Plate Boundaries – YouTubeYouTube
What are the 3 plate boundaries?
Most seismic activity occurs at three types of plate boundaries—divergent, convergent, and transform. As the plates move past each other, they sometimes get caught and pressure builds up.
What is principal axis in physics light?
Answer: The principal axis is called a line that passes via the centre of the surface of a spherical mirror or lens and through the centre of curvature of all segments of the mirror or lens.
Why is convex lens called converging lens and concave lens called diverging lens?
A convex lens converges the light rays of a parallel beam to a point after refraction through it. Hence a convex lens is also called a converging lens. A concave lens diverges the light rays of a parallel beam after refraction through it, Hence a concave lens is also called a diverging lens.
What is astigmatism and how can it be corrected quizlet?
Astigmatism is caused when the cornea has a different radius of curvature in one direction compared to another. It is cured by adding a lens with a different radius of curvature in two different directions.
Which of the following optical instrument uses two convex lenses to make a smaller object larger?
microscope A microscope is an optical instrument used to view small objects by enlarging them with two convex lenses.
What is northern plateau?
The northern plateau (in the northern part of the state) is an extension of the forest-covered and mineral-rich Chota Nagpur plateau centred in Jharkhand.
What are plateaus in Asia?
Plateaus of Asia, areas of a highland consisting of flat terrain, that is raised sharply above the surrounding area on at least one side. Often one or more sides have deep hills. Plateaus can be formed by a number of processes, including upwelling of volcanic magma, extrusion of lava, and erosion by water and glaciers.
What is called ghat in English?
ghat noun (C) (ROAD) a road or path through mountains. SMART Vocabulary: related words and phrases. Roads: pedestrian routes.
What are the 4 types of plate boundary?
There are four types of boundaries between tectonic plates that are defined by the movement of the plates: divergent and convergent boundaries, transform fault boundaries, and plate boundary zones.
What are the 4 main plate boundaries?
There are four main types of plate boundary. These are constructive, destructive, conservative and collision margins.