EARTHQUAKES :- Any sudden movement of a portion of the earth's crust due to a natural cause, which produces a shaking or trembling is known as an earthquake. Causes of Earthquakes: The chief cause of earthquakes is the sudden slipping of the portion of the earth's crust past each other along fractures or faults. The movement of the molten rocks underneath the surface produces strains which b...

Earth is the third planet form the sun. Earth is the terrestrial planets in the Solar System in diameter, mass and density. It is also referred to as the World and Terra. Home to millions of species, including humans, Earth is the only place in the universe where life is known to exist. Scientific evidence indicates that the planet formed 4.54 billion years ago, and life appeared on its surface...

The Solar System consists of the Sun and those celestial objects bound to it by gravity. These objects are the eight planets, their 166 known moons, five dwarf planets, and billions of small bodies. The small bodies include asteroids, icy Kuiper belt objects, comets, meteoroids, and interplanetary dust. The charted regions of the Solar System are the Sun, four terrestrial inner planets, the ast...

The earth is believed to have been formed from a small part of the sun. Most of the theories concerned with the origin of the earth emphasise that the planet originated as a hot gaseous mass which on cooling, turned, first into a liquid and than into a solid. One of the earliest theories was put forth by Kant, which is popularly known as the gaseous hypothesis. A more popular theory was advance...

The Tropic of Cancer passes through 17 countries. Starting at the prime meridian and moving eastwards: Algeria, Niger, Libya, Egypt, Saudi Arabia, United Arab Emirates, Oman, India, Bangladesh, Myanmar, China, Republic of China (Taiwan), Mexico, Bahamas, Morocco, Mauritania, and Mali. In Ocean it passes through: Red Sea, Indian Ocean, Taiwan Strait, Pacific Ocean, Gulf of California, Gul...