what is earth

Earth is the only planet in our solar system, which is surrounded by oxygen, the life giving gas. It is the only planet to have large quantities of water. Earth's atmosphere contains oxygen, nitrogen, carbon dioxide and water vapour. Earth Earth is a medium s..

The constituents of the earth are shown in the circle graph. What percent of the earth is covered with water? => 70 or 50 or 60 or 80..

Structure of the Earth - In outward appearance, the earth is a nearly spherical ball with a radius of 6350 kilometers. Internally, the earth consists of three major layers. They are: Crust Mantle Co..

Rocks of the Earth - Rocks are polycrystalline solid portions of the earth's crust having a definite texture and mineral content. Usually two or more minerals combine to form different rocks. They are classified ..

The Earth's Magnetism - A magnetic compass was used to help the sailors for navigational purpose. But recently it has been discovered that some migrant birds have magnetic sensors in their heads, which help to guide them using the Earth's magnetic field. William Gilbert suggeste..

Rocks are polycrystalline solid portions of the earth's crust having a definite texture and mineral content. Usually two or more minerals combine to form different rocks. They are classified ..

The Earth as a Magnet - About AD1600, William Gilbert, who was a court physician of Queen Elizabeth of England, performed certain experiments using spherical lodestones. When he placed small, pivoted magnetic needles at different positions on this sphere, he found that their behavior was ..

About AD1600, William Gilbert, who was a court physician of Queen Elizabeth of England, performed certain experiments using spherical lodestones. When he placed small, pivoted magnetic needles at different positions on this sphere, he found that their behavior was quite similar to that of magnetize..

Structure of the Earth - During the formation of the Earth, cooling of gaseous mixtures took place and molten earth condensed to form different earth zones or layers. Each layer that formed on top of the other had a definite chemical composition and thus a di..

During the formation of the Earth, cooling of gaseous mixtures took place and molten earth condensed to form different earth zones or layers. Each layer that formed on top of the other had a definite chemical composition and thus a distinct distribution of elements wi..