What is the meaning of sphere?
What is the meaning of sphere?
sphere noun [C] (ROUND OBJECT) geometry. a solid shape like a round ball: This changes the shape of the cornea from a spoonlike form to a sphere.
What is the name of a sphere?
What is another word for sphere?
| ball | globe |
|---|---|
| bubble | rondure |
| circle | spheroid |
| spherule | round |
| ovoid | balloon |
What is Sphere and its properties?
A sphere is symmetrical, round in shape. It is a three dimensional solid, that has all its surface points at equal distances from the center. It has surface area and volume based on its radius. It does not have any faces, corners or edges.
What is difference between circle and sphere?
Difference Between Sphere and Circle All the points of a circle are present at the same distance from its centre in a plane. All the points in a sphere are equidistant at any axes from the centre. In the case of a sphere, its surface area and volume are determined.
What is the sphere of life?
The biosphere (from Greek βίος bíos “life” and σφαῖρα sphaira “sphere”), also known as the ecosphere (from Greek οἶκος oîkos “environment” and σφαῖρα), is the worldwide sum of all ecosystems.
Is the sphere of life?
In life, we can generalise our daily motion into different spheres; for example, family, friends, education, work, dating, career, health, travel, etc. For each of these we pose a certain importance; we can choose which spheres we want to prioritise.
What are the seven spheres of life?
By working through each of the Seven SPHERES of Life – Social, Personal, Health, Education, Relationships, Employment and Spiritual Development – “Best Self” is an accessible and interactive book that distills all of Bayer’s wisdom into a compact, focused guide that can ignite your desire for change.
What are the Earth’s four spheres?
Everything in Earth’s system can be placed into one of four major subsystems: land, water, living things, or air. These four subsystems are called “spheres.” Specifically, they are the “lithosphere” (land), “hydrosphere” (water), “biosphere” (living things), and “atmosphere” (air).
What is Earth’s largest sphere?
The solid Earth, the largest of Earth’s four major spheres. The thin, rocky outer layer of earth and is divided into oceanic and continental crust. A solid rocky shell that extends to a depth of about 2900 kilometers.
Which is the thinnest of the Earth’s spheres?
Figure 1.10: The crust is the outermost “skin” of Earth and variable thick- nesses; it is thickest under mountain ranges (70 km) and thinnest under the mid- ocean ridges (3 km).
How many spheres are there?
The six spheres of the Earth system are the atmosphere (air), geosphere (land and solid earth), hydrosphere (water), cryosphere (ice), biosphere (life), and a subset of the biosphere: the anthroposphere (human life).
What are the 5 spheres on earth?
The five systems of Earth (geosphere, biosphere, cryosphere, hydrosphere, and atmosphere) interact to produce the environments we are familiar with.
What is the largest system on earth?
geosphere
What spheres caused the event?
Ans) These spheres are closely connected. For example, many birds (biosphere) fly through the air (atmosphere), while water (hydrosphere) often flows through the soil (lithosphere). In fact, the spheres are so closely connected that a change in one sphere often results in a change in one or more of the other spheres.
A 3-dimensional object shaped like a ball. Every point on the surface is the same distance from the center. Sphere.
What does sphere mean in math?
Sphere, In geometry, the set of all points in three-dimensional space lying the same distance (the radius) from a given point (the centre), or the result of rotating a circle about one of its diameters. The components and properties of a sphere are analogous to those of a circle.
What does sphere mean in atmosphere?
A broadly spherical object or region. English sphere, derived from Greek sphaira, ball. The larger proportion of common words in ‑sphere refer to the Earth, such as atmosphere or biosphere. Several refer to regions of a star, such as photosphere.
What is Sphere in science definition?
(Science: geometry) A body or space contained under a single surface, which in every part is equally distant from a point within called its center. 2. Hence, any globe or globular body, especially a celestial one, as the sun, a planet, or the earth.
When was sphere first used?
Spherical Earth or Earth’s curvature refers to the approximation of figure of the Earth as a sphere. The earliest documented mention of the concept dates from around the 5th century BC, when it appears in the writings of Greek philosophers.
Is sphere Latin or Greek?
The ball image is a good one since the word sphere comes from very similar-sounding Greek and Latin words, both of which mean “ball.” The word sphere, however, has much broader usage: we use it in to discussing astronomy, our earth, even our social rank (as in “one’s sphere of influence”).
Is Tele Greek or Latin?
tele-, 1 prefix. tele- comes from Greek, where it has the meaning “far. ” It is attached to roots and sometimes words and means “reaching over a distance, carried out between two remote points, performed or operating through electronic transmissions”:telegraph;telekinesis;teletypewriter.
How old is the word sphere?
sphere (n.) From late 14c. in reference to any of the supposed concentric, transparent, hollow, crystalline globes of the cosmos believed to revolve around the earth and contain the planets and the fixed stars; the supposed harmonious sound they made rubbing against one another was the music of the spheres (late 14c.).
What is the Greek root of sphere?
Hydrosphere combines the Greek root hydro-, “water,” and sphere, “globe, cosmos, or space,” from the Greek sphaira, “globe or ball.”
Which sphere does the frog belong to?
atmosphere biosphere
Where did the name sphere come from?
From Middle English spere, from Old French sphere, from Late Latin sphēra, earlier Latin sphaera (“ball, globe, celestial sphere”), from Ancient Greek σφαῖρα (sphaîra, “ball, globe”), of unknown origin.
Which sphere protects surface?
atmosphere
What part of Earth contains rocks?
crust
What are the two kinds of crust and its definition?
Earth’s Crust There are two different types of crust: thin oceanic crust that underlies the ocean basins, and thicker continental crust that underlies the continents. These two different types of crust are made up of different types of rock.
Which crust is thicker?
continental crust
Which type of crust is usually the oldest?
The oldest oceanic crust is about 260 million years old. This sounds old but is actually very young compared to the oldest continental rocks, which are 4 billion years old.
Which type of the crust is thinner?
Oceanic crust
Why is continental crust thicker?
The crust is thickened by the compressive forces related to subduction or continental collision. The buoyancy of the crust forces it upwards, the forces of the collisional stress balanced by gravity and erosion. This forms a keel or mountain root beneath the mountain range, which is where the thickest crust is found.
What is an example of continental crust?
The continental crust is the layer of granitic, sedimentary and metamorphic rocks which form the continents and the areas of shallow seabed close to their shores, known as continental shelves. About 40% of the Earth’s surface is now underlain by continental crust.
How thick can continental crust be?
The continental crust is thick and old—typically approximately 30 miles thick and approximately 2 billion (2 × 109) years old—and covers approximately 30–40% of the Earth. Whereas almost all of the oceanic crust is underwater, most of the continental crust is exposed to the air.
What is the characteristic of continental crust?
Continental crust is broadly granitic in composition and, with a density of about 2.7 grams per cubic cm, is somewhat lighter than oceanic crust, which is basaltic (i.e., richer in iron and magnesium than granite) in composition and has a density of about 2.9 to 3 grams per cubic cm.
What are the main features of crust?
In geology, a crust is the outermost layer of a planet. The crust of the Earth is composed of a great variety of igneous, metamorphic, and sedimentary rocks. The crust is underlain by the mantle. The upper part of the mantle is composed mostly of peridotite, a rock denser than rocks common in the overlying crust.
What are 3 differences between oceanic and continental crust?
Continental crust is low in density whereas oceanic crust has a higher density. continental crust is thicker, on the contrary, the oceanic crust is thinner. Continental crust floats on magma freely but oceanic crust floats on magma scarcely. Continental crust cannot recycle whereas oceanic crust can recycle it.
What are the main features of crust and core?
the core is divided into two parts inner and outer core. the inner core is solid but outer core is in liquid form. Mantle, the second layer of the earth, it is located just below the Crust. It is made of Molten Magma.